Kostric used extraordinarily poor judgement. He is obviously an intelligent person but once again proves that intelligence doesn't translate to street smarts. It is quite likely nobody would have known he was carrying, he would be protecting himself and his rights, and he would have been able to articulate his beliefs without "interference" had only he been CCW. Wearing a gun in a tactical holster anywhere near the POTUS is simply stupid.
Be safe.
Be safe.