August 5, 2014 6:12 PM

Killing of U.S. major general in Afghanistan revives worries about safety of trainers

An American major general was fatally gunned down by an Afghan soldier Tuesday at a Kabul military academy, becoming the highest-ranking U.S. officer killed in combat overseas since the Vietnam War and renewing fears about the ability of U.S. troops to work safely alongside their Afghan counterparts.

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