Support WBURWhen The U.S. Backs Rebels, It Doesn't Often Go As PlannedGreg MyreSeptember 20, 2014 ShareAfghan rebels, or mujahedeen, climb on a Soviet helicopter they shot down in 1981. U.S. assistance helped the rebels drive out the Soviet forces. But the chaotic conditions in Afghanistan allowed al-Qaida to take root in the 1990s. (AP)
