One of the kids at my son's college has been sharing lots of white supremacy and racist propaganda online. A couple of the other parents know about it and have told his mother she should get the police involved - trouble is even if the police were interested (I've no idea if they would be or not) it's always in his "stories" so it disappears anyway. She has asked my advice on how to deal with it (they used to be close friends at school so I've known her for years) and quite honestly I've no idea.