Yet some school cultures are entrenched, and extend from the broader community. If people are taught from everywhere else that bearing witness is dangerous then

Yet some school cultures are entrenched, and extend from the broader community. If people are taught from everywhere else that bearing witness is dangerous then groups of bullies will have free reign. Changing that culture can be like pushing a rock up hill. Solutions may have to be drastic, like electronic surveillance or sending troublemakers to different schools.