To the Editor: We are writing to express support for the South Burlington students’ decision to fly the Black Lives Matter flag at South Burlington schools. The Black Lives Matter movement arose in response to ongoing incidents in which the lives of Black Americans have been disproportionately destroyed or damaged. The movement began after Trayvon Martin, a 17-year-old Black teenager, was killed by a vigilante in 2012 while walking home from a convenience store. This wasn’t an isolated event.