Mint, otro Linux para quienes quieren explorar el mundo fuera de Windows

Una de las grandes virtudes de Linux (un sistema operativo libre para PC y otros dispositivos) es la cantidad innumerable de versiones disponibles. Estas distribuciones, además, son en su enorme mayoría de uso gratis, y representan una buena alternativa para los que no desean invertir en una licencia de Windows o quieren explorar -sin gastar- alternativas para la computadora hogareña.

Hemos recomendado en varias ocasiones opciones sencillas de usar e instalar que tienen herramientas iguales o muy similares a las que pueden encontrarse en Windows, destacando la ductilidad de las distribuciones disponibles y cómo hacer para probarlas sin complicarse demasiado , usando un CD regrabable o un pendrive, para no afectar el Windows instalado en la computadora.

En los últimos años fue Ubuntu el que más hizo para facilitarle el trabajo a los neófitos que venían de Windows, automatizando y simplificando procesos de instalación, creando un sitio amigable, sumando instrucciones de instalación y uso en lenguaje no técnico e incluso haciendo acuerdo para preinstalarlo en equipos de marca , pero la elección de la interfaz de usuario Unity (algo rígida) le hizo perder adeptos.

Una de las alternativas que venía creciendo en popularidad era Linux Mint (gratis), y los últimos números de DistroWatch , un sitio que lista las diferentes distribuciones y su popularidad, lo dan como el rey de 2012. Mint usa a Ubuntu como base, por lo que aprovecha algunas de sus herramientas (como la que permite instalarlo dentro de Windows para poder usarlo sin afectar la instalación original) y viene con una gran cantidad de componentes multimedia preinstalados, para facilitar la reproducción de audio y video, entre otras cosas (las distribuciones más “puras” suelen evitar esto para promover el uso de estándares libres de audio y video).

Hace poco más de un mes Linux Mint liberó su versión más reciente, Nadia 14, que incluye dos entornos de escritorio que resultarán muy agradables para quienes no se sienten cómodos con Unity, porque mantienen el esquema tradicional de Windows y Gnome 2.x: una barra de herramientas en la parte inferior de la pantalla, ventanas con los botones de control a la derecha, etcétera.

Linux Mint 14 tiene dos versiones: MATE (basado en Gnome 2.x, y cuyo nombre está inspirado en la yerba mate) y Cinnamon (canela, en inglés) de aspecto similar pero con algunos detalles visuales más atractivos: menús de notificaciones más sofisticados, escritorios virtuales persistentes, miniaturas en el administrador de ventanas y más.

cómo instalarlo

Cualquiera de ellas se puede meter en un pendrive o disco externo y correr desde allí o, si se quiere, instalarlas en la PC, junto con Windows (es compatible con Windows 8) o en una partición nueva. Alcanza con descargar el archivo ISO de instalación (hay uno para MATE y otro para Cinnamon). Ese archivo (900 MB, aproximadamente) se puede grabar en un DVD con una aplicación para quemar imágenes de disco: en Windows está el freeware CDBurnerXP , por ejemplo. Con el disco en la lectora, al encender al PC debería cargar primero Mint antes que Windows (si no, habrá que cambiar una configuración en el BIOS). Podremos usarlo como si estuviera instalado en la PC y luego, si queremos, instalarlo en el disco rígido de nuestra computadora, cuidando de hacerlo en una partición vacía o dentro de Windows.

Otra opción es instalarlo en una memoria USB (de 2 GB o más de capacidad). Para eso hay que usar la aplicación Image Writer (gratis, hay que cliquear donde dice win32diskimager-binary.zip para descargar el archivo). Luego habrá que cambiar la extensión del archivo de .ISO a .IMG para que Image Writer reconozca el archivo y pueda copiarlo en el pendrive (atención que borrará todo lo que está allí).

Si al prender la PC con el pendrive conectado no lo reconoce, habrá que cambiar el orden de carga de sistemas operativos, una opción que suele aparecer apenas se prende la PC (y que no estará disponible si la computadora es muy vieja) para ordenarle que cargue primero el contenido de la memoria USB.

Para quienes estén pensando en probar una distribución de Linux y buscan reducir el “choque cultural” con una interfaz de usuario que sea parecida -pero no idéntica- a la del Windows tradicional, y que además sea sencillo de usar, tienen en Linux Mint 14 Nadia una opción muy atractiva.

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Patrick Dempsey brews up coffee shop purchase

LOS ANGELES (AP) — Patrick Dempsey says he wants to rescue a coffee house chain and more than 500 jobs.

The "Grey's Anatomy" star said Wednesday he's leading a group attempting to buy Tully's Coffee. The Seattle-based company filed for Chapter 11 bankruptcy protection in October.

Dempsey said he's excited about the chance to help hundreds of workers and give back to Seattle.

The actor has a strong TV tie to the city: He plays Dr. Derek Shepherd on "Grey's Anatomy," the ABC drama set at fictional Seattle Grace Hospital.

Tully's has 47 company-run stores in Washington and California, as well as five franchised stores and 58 licensed locations in the U.S.

Any sale would have to be approved by a judge. A bankruptcy court hearing is set for Jan. 11 in Seattle.

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Predicting who's at risk for violence isn't easy

CHICAGO (AP) — It happened after Columbine, Virginia Tech, Aurora, Colo., and now Sandy Hook: People figure there surely were signs of impending violence. But experts say predicting who will be the next mass shooter is virtually impossible — partly because as commonplace as these calamities seem, they are relatively rare crimes.

Still, a combination of risk factors in troubled kids or adults including drug use and easy access to guns can increase the likelihood of violence, experts say.

But warning signs "only become crystal clear in the aftermath, said James Alan Fox, a Northeastern University criminology professor who has studied and written about mass killings.

"They're yellow flags. They only become red flags once the blood is spilled," he said.

Whether 20-year-old Adam Lanza, who used his mother's guns to kill her and then 20 children and six adults at their Connecticut school, made any hints about his plans isn't publicly known.

Fox said that sometimes, in the days, weeks or months preceding their crimes, mass murderers voice threats, or hints, either verbally or in writing, things like "'don't come to school tomorrow,'" or "'they're going to be sorry for mistreating me.'" Some prepare by target practicing, and plan their clothing "as well as their arsenal." (Police said Lanza went to shooting ranges with his mother in the past but not in the last six months.)

Although words might indicate a grudge, they don't necessarily mean violence will follow. And, of course, most who threaten never act, Fox said.

Even so, experts say threats of violence from troubled teens and young adults should be taken seriously and parents should attempt to get them a mental health evaluation and treatment if needed.

"In general, the police are unlikely to be able to do anything unless and until a crime has been committed," said Dr. Paul Appelbaum, a Columbia University professor of psychiatry, medicine and law. "Calling the police to confront a troubled teen has often led to tragedy."

The American Academy of Child & Adolescent Psychiatry says violent behavior should not be dismissed as "just a phase they're going through."

In a guidelines for families, the academy lists several risk factors for violence, including:

—Previous violent or aggressive behavior

—Being a victim of physical or sexual abuse

—Guns in the home

—Use of drugs or alcohol

—Brain damage from a head injury

Those with several of these risk factors should be evaluated by a mental health expert if they also show certain behaviors, including intense anger, frequent temper outbursts, extreme irritability or impulsiveness, the academy says. They may be more likely than others to become violent, although that doesn't mean they're at risk for the kind of violence that happened in Newtown, Conn.

Lanza, the Connecticut shooter, was socially withdrawn and awkward, and has been said to have had Asperger's disorder, a mild form of autism that has no clear connection with violence.

Autism experts and advocacy groups have complained that Asperger's is being unfairly blamed for the shootings, and say people with the disorder are much more likely to be victims of bullying and violence by others.

According to a research review published this year in Annals of General Psychiatry, most people with Asperger's who commit violent crimes have serious, often undiagnosed mental problems. That includes bipolar disorder, depression and personality disorders. It's not publicly known if Lanza had any of these, which in severe cases can include delusions and other psychotic symptoms.

Young adulthood is when psychotic illnesses typically emerge, and Appelbaum said there are several signs that a troubled teen or young adult might be heading in that direction: isolating themselves from friends and peers, spending long periods alone in their rooms, plummeting grades if they're still in school and expressing disturbing thoughts or fears that others are trying to hurt them.

Appelbaum said the most agonizing calls he gets are from parents whose children are descending into severe mental illness but who deny they are sick and refuse to go for treatment.

And in the case of adults, forcing them into treatment is difficult and dependent on laws that vary by state.

All states have laws that allow some form of court-ordered treatment, typically in a hospital for people considered a danger to themselves or others. Connecticut is among a handful with no option for court-ordered treatment in a less restrictive community setting, said Kristina Ragosta, an attorney with the Treatment Advocacy Center, a national group that advocates better access to mental health treatment.

Lanza's medical records haven't been publicly disclosed and authorities haven't said if it is known what type of treatment his family may have sought for him. Lanza killed himself at the school.

Jennifer Hoff of Mission Viejo, Calif. has a 19-year-old bipolar son who has had hallucinations, delusions and violent behavior for years. When he was younger and threatened to harm himself, she'd call 911 and leave the door unlocked for paramedics, who'd take him to a hospital for inpatient mental care.

Now that he's an adult, she said he has refused medication, left home, and authorities have indicated he can't be forced into treatment unless he harms himself — or commits a violent crime and is imprisoned. Hoff thinks prison is where he's headed — he's in jail, charged in an unarmed bank robbery.

___

Online:

American Academy of Child & Adolescent Psychiatry: http://www.aacap.org

___

AP Medical Writer Lindsey Tanner can be reached at http://www.twitter.com/LindseyTanner

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George H.W. Bush in intensive care

HOUSTON (AP) — A spokesman says former President George H.W. Bush is in the intensive care unit at a Houston hospital.

Bush's spokesman, Jim McGrath, said late Wednesday that the former president was admitted to the ICU on Sunday at Methodist Hospital, "following a series of setbacks including a persistent fever."

McGrath says Bush is alert and conversing with medical staff, and that doctors are cautiously optimistic about his treatment.

No other details about his medical condition were provided, but McGrath says Bush is surrounded by family.

Earlier Wednesday, McGrath said a fever that kept Bush in the hospital over Christmas had gotten worse and that doctors had put him on a liquids-only diet.

A bronchitis-like cough initially brought Bush to the hospital in late November. McGrath says the cough has improved.

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Kazakhstan military plane crashes, killing 27

MOSCOW (AP) — Kazakhstan's acting border service chief was among 27 people killed in a military plane crash Tuesday near a southern city, another blow to the agency after he was appointed in June to deal with the aftermath of a mass killing involving a conscript.

The Russian-made An-72 crashed at 1255 GMT (7:55 a.m. EST) about 20 kilometers (12 miles) away from the city of Shymkent near the border with Uzbekistan, Kazakhstan's Committee for National Security said in a statement.

The fatalities included a crew of seven and 20 border guards, including the acting head of the ex-Soviet nation's border protection service, Col. Turganbek Stambekov, the statement said.

Without specifying further details, authorities said an investigation was opened into the crash. No cause was given, but southern Kazakhstan over recent weeks has been buffeted by winds, heavy snows and low temperatures, causing widespread flight delays.

Stambekov was appointed acting head of the border service in June, after a mass killing of 14 frontier troops in a remote Kazakh outpost near China the month before. Vladislav Chelakh, a 20-year-old conscript, was sentenced earlier this month to life in prison after being found solely responsible for the killings.

The border service has come under close scrutiny in Kazakhstan since the killings, which many argued showed the lack of readiness and professionalism among serving troops. Legislation approved Thursday by the upper house of parliament and supported by Stambekov was designed to improve the process for selecting conscripts for the service.

The Kazakh-Uzbek border stretches 2,200 kilometers (1,350 miles) of Central Asian steppes and deserts.

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Tajikistan blocks scores of websites as election looms

DUSHANBE (Reuters) – Tajikistan blocked access to more than 100 websites on Tuesday, in what a government source said was a dress rehearsal for a crackdown on online dissent before next year’s election when President Imomali Rakhmon will again run for office.

Rakhmon, a 60-year-old former head of a Soviet cotton farm, has ruled the impoverished Central Asian nation of 7.5 million for 20 years. He has overseen constitutional amendments that allow him to seek a new seven-year term in November 2013.

The Internet remains the main platform where Tajiks can air grievances and criticize government policies at a time when the circulation of local newspapers is tiny and television is tightly controlled by the state.

Tajikistan’s state communications service blocked 131 local and foreign Internet sites “for technical and maintenance works”.

“Most probably, these works will be over in a week,” Tatyana Kholmurodova, deputy head of the service, told Reuters. She declined to give the reason for the work, which cover even some sites with servers located abroad.

The blocked resources included Russia‘s popular social networking sites www.my.mail.ru and VKontakte (www.vk.com), as well as Tajik news site TJKnews.com and several local blogs.

“The government has ordered the communications service to test their ability to block dozens of sites at once, should such a need arise,” a senior government official told Reuters on condition of anonymity.

“It is all about November 2013,” he said, in a clear reference to the presidential election.

Other blocked websites included a Ukrainian soccer site, a Tajik rap music site, several local video-sharing sites and a pornography site.

VOLATILE NATION

Predominantly Muslim Tajikistan, which lies on a major transit route for Afghan drugs to Europe and Russia, remains volatile after a 1992-97 civil war in which Rakhmon’s Moscow-backed secular government clashed with Islamist guerrillas.

Rakhmon justifies his authoritarian methods by saying he wants to oppose radical Islam. But some of his critics argue repression and poverty push many young Tajiks to embrace it.

Tighter Internet controls echo measures taken by other former Soviet republics of Central Asia, where authoritarian rulers are wary of the role social media played in revolutions in the Arab world and mass protests in Russia.

The government this year set up a volunteer-run body to monitor Internet use and reprimand those who openly criticize Rakhmon and other officials.

In November, Tajikistan blocked access to Facebook, saying it was spreading “mud and slander” about its veteran leader.

The authorities unblocked Facebook after concern was expressed by the United States and European Union, the main providers of humanitarian aid for Tajikistan, where almost a half of the population lives in abject poverty.

Asomiddin Asoyev, head of Tajikistan’s association of Internet providers, said authorities were trying to create an illusion that there were no problems in Tajik society by silencing online criticism.

“This is self-deception,” he told Reuters. “The best way of resolving a problem is its open discussion with civil society.”

Moscow-based Central Asia expert Arkady Dubnov told Reuters that Rakhmon’s authoritarian measures could lead to a backlash against the president in the election. “Trying to position itself as the main guarantor of stability through repression against Islamist activists, the Dushanbe government is actually achieving the reverse – people’s trust in it is falling,” he said.

(Writing by Dmitry Solovyov; Editing by Pravin Char)

Internet News Headlines – Yahoo! News

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Jessica Simpson's Christmas gift: She's pregnant

NEW YORK (AP) — Jessica Simpson's daughter has the news all spelled out: "Big Sis."

Simpson on Tuesday tweeted a photo of her baby daughter Maxwell playing in the sand, the words "Big Sis" spelled out.

The 32-year-old old singer and personality has been rumored to be expecting again. The tweet appears to confirm the rumors.

"Merry Christmas from my family to yours" is the picture's caption. Simpson used a tweet on Halloween in 2011 to announce she was pregnant with Maxwell. She is engaged to Eric Johnson and gave birth to Maxwell in May.

One possible complication regarding her pregnancy: She is a spokeswoman for Weight Watchers.

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Predicting who's at risk for violence isn't easy

CHICAGO (AP) — It happened after Columbine, Virginia Tech, Aurora, Colo., and now Sandy Hook: People figure there surely were signs of impending violence. But experts say predicting who will be the next mass shooter is virtually impossible — partly because as commonplace as these calamities seem, they are relatively rare crimes.

Still, a combination of risk factors in troubled kids or adults including drug use and easy access to guns can increase the likelihood of violence, experts say.

But warning signs "only become crystal clear in the aftermath, said James Alan Fox, a Northeastern University criminology professor who has studied and written about mass killings.

"They're yellow flags. They only become red flags once the blood is spilled," he said.

Whether 20-year-old Adam Lanza, who used his mother's guns to kill her and then 20 children and six adults at their Connecticut school, made any hints about his plans isn't publicly known.

Fox said that sometimes, in the days, weeks or months preceding their crimes, mass murderers voice threats, or hints, either verbally or in writing, things like "'don't come to school tomorrow,'" or "'they're going to be sorry for mistreating me.'" Some prepare by target practicing, and plan their clothing "as well as their arsenal." (Police said Lanza went to shooting ranges with his mother in the past but not in the last six months.)

Although words might indicate a grudge, they don't necessarily mean violence will follow. And, of course, most who threaten never act, Fox said.

Even so, experts say threats of violence from troubled teens and young adults should be taken seriously and parents should attempt to get them a mental health evaluation and treatment if needed.

"In general, the police are unlikely to be able to do anything unless and until a crime has been committed," said Dr. Paul Appelbaum, a Columbia University professor of psychiatry, medicine and law. "Calling the police to confront a troubled teen has often led to tragedy."

The American Academy of Child & Adolescent Psychiatry says violent behavior should not be dismissed as "just a phase they're going through."

In a guidelines for families, the academy lists several risk factors for violence, including:

—Previous violent or aggressive behavior

—Being a victim of physical or sexual abuse

—Guns in the home

—Use of drugs or alcohol

—Brain damage from a head injury

Those with several of these risk factors should be evaluated by a mental health expert if they also show certain behaviors, including intense anger, frequent temper outbursts, extreme irritability or impulsiveness, the academy says. They may be more likely than others to become violent, although that doesn't mean they're at risk for the kind of violence that happened in Newtown, Conn.

Lanza, the Connecticut shooter, was socially withdrawn and awkward, and has been said to have had Asperger's disorder, a mild form of autism that has no clear connection with violence.

Autism experts and advocacy groups have complained that Asperger's is being unfairly blamed for the shootings, and say people with the disorder are much more likely to be victims of bullying and violence by others.

According to a research review published this year in Annals of General Psychiatry, most people with Asperger's who commit violent crimes have serious, often undiagnosed mental problems. That includes bipolar disorder, depression and personality disorders. It's not publicly known if Lanza had any of these, which in severe cases can include delusions and other psychotic symptoms.

Young adulthood is when psychotic illnesses typically emerge, and Appelbaum said there are several signs that a troubled teen or young adult might be heading in that direction: isolating themselves from friends and peers, spending long periods alone in their rooms, plummeting grades if they're still in school and expressing disturbing thoughts or fears that others are trying to hurt them.

Appelbaum said the most agonizing calls he gets are from parents whose children are descending into severe mental illness but who deny they are sick and refuse to go for treatment.

And in the case of adults, forcing them into treatment is difficult and dependent on laws that vary by state.

All states have laws that allow some form of court-ordered treatment, typically in a hospital for people considered a danger to themselves or others. Connecticut is among a handful with no option for court-ordered treatment in a less restrictive community setting, said Kristina Ragosta, an attorney with the Treatment Advocacy Center, a national group that advocates better access to mental health treatment.

Lanza's medical records haven't been publicly disclosed and authorities haven't said if it is known what type of treatment his family may have sought for him. Lanza killed himself at the school.

Jennifer Hoff of Mission Viejo, Calif. has a 19-year-old bipolar son who has had hallucinations, delusions and violent behavior for years. When he was younger and threatened to harm himself, she'd call 911 and leave the door unlocked for paramedics, who'd take him to a hospital for inpatient mental care.

Now that he's an adult, she said he has refused medication, left home, and authorities have indicated he can't be forced into treatment unless he harms himself — or commits a violent crime and is imprisoned. Hoff thinks prison is where he's headed — he's in jail, charged in an unarmed bank robbery.

___

Online:

American Academy of Child & Adolescent Psychiatry: http://www.aacap.org

___

AP Medical Writer Lindsey Tanner can be reached at http://www.twitter.com/LindseyTanner

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Newtown celebrates Christmas amid signs of mourning

NEWTOWN, Conn. - Newtown celebrated Christmas amid piles of snow-covered teddy bears and heaps of flowers as volunteers manned a 24-hour candlelight vigil in memory of the 20 children and six adults shot to death in the second-largest school shooting in U.S. history.

Well-wishers from around the country showed up Tuesday morning to hang ornaments on memorial Christmas trees, while police officers from around Connecticut took extra shifts to give local police a day off.

"It's a nice thing that they can use us this way," Ted Latiak, a police detective from Greenwich, Connecticut, said as he and a fellow detective came out of a store with bagels and coffee for other officers.

A steady stream of residents, some in pyjamas, relit candles that had been extinguished in an overnight snowstorm. Others dropped off toys and fought back tears at a huge sidewalk memorial filled with stuffed animals, poems, flowers, posters and cards.

In the morning, resident Joanne Brunetti watched over 26 candles that had been lit at midnight in honour of those slain at Sandy Hook Elementary School. She and her husband, Bill, signed up for a three-hour shift and erected a tent to ensure that the flames never went out throughout the day.

"You have to do something and you don't know what to do, you know? You really feel very helpless in this situation," she said. "My thought is if we were all this nice to each other all the time maybe things like this wouldn't happen."

Julian Revie played "Silent Night" on a piano on the sidewalk at the downtown memorial. Revie, from Ottawa, Canada, was visiting the area at the time of the shootings. He found a piano online and chose to spend Christmas Eve and Christmas Day playing for the people of Newtown.

"It was such a mood of respectful silence," said Revie. "But yesterday being Christmas Eve and today being Christmas Day, I thought now it's time for some Christmas carols for the children."

At a town hall memorial, Faith Leonard waved to people driving by and handed out Christmas cookies and children's gifts. She had driven from Arizona, at almost the other end of the country, to volunteer on Christmas morning alone.

"I guess my thought was if I could be here helping out, maybe one person would be able to spend more time with their family or grieve in the way they needed to," Leonard said.

Many residents attended Christmas Eve services and spent Tuesday morning at home with their families. Others attended church services in search of a new beginning.

At St. Rose of Lima Roman Catholic Church, which eight of the child victims of the massacre attended, the pastor told parishioners that "today is the day we begin everything all over again."

Recalling the events of Dec. 14, the Rev. Robert Weiss said: "The moment the first responder broke through the doors, we knew good always overcomes evil."

"We know Christmas in a way we never ever thought we would know it," Weiss said. "We need a little Christmas and we've been given it."

Police have yet to offer a theory about a possible motive for gunman Adam Lanza's rampage. The 20-year-old resident killed his mother in her bed before carrying out the massacre and killing himself.

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Afghan policewoman kills US adviser in Kabul

KABUL, Afghanistan (AP) — An Afghan policewoman walked into a high-security compound in Kabul Monday and killed an American contractor with a single bullet to the chest, the first such shooting by a woman in a spate of insider attacks by Afghans against their foreign allies.

Afghan officials who provided details identified the attacker as police Sgt. Nargas, a mother of four with a clean record. The shooting was outside the police headquarters in a walled compound which houses the governor's office, courts and a prison in the heart of the capital.

A police official said she was able to enter the compound armed because she was licensed to carry a weapon as a police officer.

The American, whose identity was not released, was a civilian adviser who worked with the NATO command. He was shot as he came out of a small shop, Kabul Governor Abdul Jabar Taqwa told The Associated Press. The woman refused to explain her motive for her attack, he said.

The fact that a woman was behind the assault shocked some Afghans.

"I was very shaken when I heard the news," said Nasrullah Sadeqizada, an independent member of Parliament. "This is the first female to carry out such an attack. It is very surprising and sad," he added, calling for more careful screening of all candidates, male and female, for the police force.

According to NATO, some 1,400 women were serving in the Afghan police force mid-year with 350 in the army -- still a very small proportion of the 350,000 in both services. Such professions are still generally frowned upon in this conservative society but women have made significant gains in recent years, with most jobs and education opportunities open to them, at least by law if not always in practice.

This is in stark contrast to the repression they suffered under the former Taliban regime, which forced women to be virtual prisoners in their homes, and severely punished them for even small infractions of the draconian codes.

The NATO command said that while the investigation continued, there might be "some temporary, prudent measures put into place to reduce the exposure of our people." But a NATO spokesman, U.S. Air Force Lt. Col. Lester T. Carroll, said the vital mission of training the Afghan police "remained unchanged."

There have been more than 60 insider attacks this year against foreign military and civilian personnel. They represent another looming security issue as President Barack Obama and Afghan President Hamid Karzai prepare to meet early next year to discuss the pullout of NATO troops from Afghanistan by 2014 and the size and nature of a residual force the United States will keep in the country.

Insider attacks by Afghan soldiers or police have accelerated this year as NATO forces, due to mostly withdraw from the country by 2014, have speeded up efforts to train and advise Afghan security before the pullout.

The surge in such attacks is throwing doubt on the capability of the Afghan security forces to take over from international troops and has further undermined public support for the war in NATO countries.

It has also stoked suspicion among some NATO units of their Afghan counterparts, although others enjoy close working relations with Afghan military and police.

As such attacks mounted this year, U.S. officials in Kabul and Washington insisted they were "isolated incidents" and withheld details.

An AP investigation earlier this month showed that at least 63 coalition troops — mostly Americans — had been killed and more than 85 wounded in at least 46 insider attacks. That's an average of nearly one attack a week. In 2011, 21 insider attacks killed 35 coalition troops.

There have also been incidents of Taliban and other militants dressing in Afghan army and police uniforms to infiltrate NATO installations and attack foreigners.

In February, two U.S. soldiers died from an attack by an Afghan policeman at the Interior Ministry in Kabul. The incident forced NATO to temporarily pull out their advisers from a number of ministries and police units and revise procedures in dealing with Afghan counterparts.

More than 50 Afghan members of the government's security forces also have died this year in attacks by their own colleagues. Taliban militants claim such attacks reflect a growing popular opposition to both foreign military presence and the Kabul government.

In the latest attack, the governor said Nargas, who like many Afghans goes by one name, had asked bystanders where the governor's office was located before confronting the American.

Interior Ministry spokesman Sediq Sediqi said she fired only one shot that struck the American in the chest. He died either on the way or just upon arrival at a hospital, the spokesman added, describing her act as a "huge crime." He said the woman attempted to run away, pistol still in hand, after the shooting. But she was subdued by police.

She was taken into Afghan custody and Sediqi said she refused to answer questions after hours of interrogation aimed at determining her motives.

Nargas had worked with a human rights department of the police for two years and had earlier been a refugee in Pakistan and Iran, Kabul Deputy Police Chief Mohammad Daoud Amin said.

She could enter the compound armed because as a police officer, she was licensed to carry a pistol, Amin said. He said he did not know whether the killer and victim were acquainted.

"Her background is very clean. We don't see that she had any connection with armed insurgent groups," Sediqi said. He added that she aroused no suspicion because she frequently went back and forth on business between the compound and the Interior Ministry where she worked.

Canadian Brig. Gen. John C. Madower, another NATO command spokesman in Kabul, called the incident "a very sad occasion" and said his "prayers are with the loved ones of the deceased."

The killing came just hours after an Afghan policeman shot five of his colleagues at a checkpoint in northern Afghanistan late Monday. The attacker then stole his colleague's weapons and fled to join the Taliban, said deputy provincial governor in Jawzjan province, Faqir Mohammad Jawzjani.

Separately, U.S. military officials were investigating the apparent suicide of a Navy SEAL commander in Afghanistan. A U.S. military official in Washington said Cmdr. Job W. Price, 42, of Pottstown, Pa., died Saturday of a noncombat-related injury in Uruzgan province. The official said the death "appears to be the result of a suicide."

The official spoke on condition of anonymity because the death is still being investigated.

--

Associated Press reporters Rahim Faiez and Amir Shah in Kabul contributed to this report.

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