Walker’s comment was hugely unwise, because it baits citizens, priming them to expect trouble — which it indirectly now might cause. It’s scary to contemplate that the fallout over Hamilton’s death could come to a dangerous physical showdown, most likely if Walker decides to act and not just talk tough. That talk arguably was aimed at scoring points with his fearful, anti-black base while intimidating demonstrators before the fact, but it could lead to tragedy.