By SARAH BLAKE MORGAN CHARLOTTE, N.C. (AP) — Sgt. Taylor Knueven always knew sexual assault and harassment plagued the U.S. Army. But the combat medic’s own assault early last year opened her eyes to the broken system surrounding one of the military’s most infamous problems. Earlier this week, Knueven and six other soldiers stood before a panel inside the 18th Airborne Corps headquarters at Fort Bragg,