(AP) — A school district where a black student was upset that a classmate was allowed to wear a sweatshirt depicting the Confederate flag said on Friday that after more students went to class wearing Confederate flag clothing it must be banned. Earlier Friday, Plum Borough School District Superintendent Timothy Glasspool had told the Pittsburgh Tribune-Review that a high school student had a right to wear a sweatshirt depicting a Confederate flag even though it upset the black student and her father. [...] when three students arrived at school wearing such clothing on Friday and two were sent home after refusing to remove it, the items were becoming a distraction, Glasspool said in a statement posted on the district's website.