http://www.msnbc.msn.com/id/40413807..._central_asia/
KABUL, Afghanistan — A gunman wearing an Afghan border police uniform killed six American service members during a training exercise Monday in the east of the country, U.S. military officials told NBC News.
The assailant was killed in the shootout.
It's not clear whether the shooter was an actual border police officer or an imposter. An investigation is under way.
In the past, insurgents have donned police or army uniforms to attack Afghan government installations. There have also been a number of incidents in which Afghan police officers turned on their trainers in deadly shootouts.
The incident occurred in Pachir Wagam district of eastern Nangarhar province, according to an Afghan official who spoke on condition of anonymity because the information was not officially released.
The shooting marks the single deadliest incident for NATO troops since a Sept. 21 helicopter crash that killed nine Americans. It's also likely the latest in a series of incidents in which Afghan security forces turned on their NATO trainers.
NATO is investigating an incident in which two U.S. Marines were killed earlier this month in southern Helmand province, allegedly at the hands of an Afghan army soldier.
On July 20, an Afghan army sergeant got into an argument at a shooting range in northern Afghanistan and shot dead two American civilian trainers before being killed. Another Afghan soldier was killed in the crossfire. In a July 13 attack, an Afghan soldier stationed in the south killed three British troopers, including the company commander, with gunfire and a rocket-propelled grenade in the middle of the night.
Also, in November 2009, an Afghan policeman killed five British soldiers at a checkpoint in Helmand. A month earlier, an Afghan policeman on patrol with U.S. soldiers fired on the Americans, killing two.
Such shootings highlight the potential hazards of a push to speedily expand Afghanistan's army and police forces in the next few years. The goal is to turn over the responsibility for nationwide security to Afghan forces by 2014 so that NATO troops can go home.
In the past year, the Afghan police force grew 27 percent to 120,500 officers from about 95,000. The army grew 42 percent to about 138,200 soldiers from 97,000.
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the moral of the story is; you can't trust a Muslim