An Afghan police officer turned his gun on NATO troops at a remote checkpoint in the south of the country before dawn Sunday, killing four American troops, according to Afghan and international ... more 
An Afghan police officer turned his gun on NATO troops at a remote checkpoint in the south of the country before dawn Sunday, killing four American troops, according to Afghan and international officials. (Sept. 16) less 
1 / 27
Associated Press Videos
Wed, Oct 10, 2012 8:38 AM EDT