OPS didn't report abuse allegations By Jonathon Braden and Jason Kuiper WORLD-HERALD STAFF WRITERS In December 2008, a 13-year-old girl reported that her teacher at an Omaha middle school touched her sexually and asked her for sex in exchange for a better grade. She rejected her teacher’s advances, told her mom and reported the incident to school officials. But Omaha Public Schools officials did not report the allegations to authorities, despite a state statute that requires notification of suspected abuse. Instead, OPS did its own investigation, and, ultimately, allowed teacher Shad M. Knutson to return to the classroom at Nathan...