At just short of 20 years, the now-ending U.S. combat mission in Afghanistan was America's longest war. Its death toll is in the many tens of thousands and, because the U.S. borrowed most of the money to pay for it, generations of Americans will be burdened by the cost of paying it off.

Heartwrenching details began emerging Friday about some of the 13 U.S. troops killed in a horrific suicide bombing at Afghanistan’s Kabul airport, which also claimed the lives of more than 160 Afghans.

The Afghan man who was killed in a U.S. drone strike last month was an enthusiastic and beloved longtime employee at an American humanitarian organization, his colleagues say.