Pentagon Says Afghan "Insider Attacks" Not Due to Taliban

Says 90 percent of attacks are due to other motives.

Only about 11 percent of so-called "insider attacks" by Afghans against NATO troops are due to Taliban infiltration, the Pentagon said on Friday, as more American troops were killed at the hands of Afghans posing as allies in the 11-year-old war.

The vast majority of insider attacks this year -- nearly 90 percent -- are due to other motives, including personal grudges, Pentagon spokesman Lieutenant Colonel Steven Warren said, citing a new study by the NATO-led forces in Afghanistan.