The death toll in a U.S. soldier's slaying of Afghan citizens last week has risen to 17, an increase of one over earlier reports that 16 had been killed. The military was unable to explain the discrepancy immediately, saying the investigation is ongoing. Army Staff Sgt. Robert Bales, who is accused of gunning down the Afghans in their sleep on March 11, is expected to be charged Friday. He is being held in a military prison in Fort Leavenworth, Kans.