In this Thursday, Dec. 17, 2015 photo, a school bus waits outside of Riverheads High School in Staunton, Va., after Augusta County Schools were placed on lockdown in the afternoon. The closure was prompted by security concerns due to thousands of angry emails and social media postings after a teacher's lesson on Islam at Riverheads High School the previous week. (Griffin Moores/The Staunton News Leader via AP) **FILE**
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