(Beaverton, OR)  --  Parents of students at a Beaverton elementary school are expressing outrage after the school removed several Black Lives Matter signs from the campus.  Students at West Tualatin View Elementary held a Black Lives Matter march last Saturday with parents and ended their march by placing their signs up on the school's fence.  By Monday, the signs had been taken down.  The Beaverton School District says the school principal had custodians take the signs down due to a district policy banning signs, posters or banners on school grounds.