Re JHM4 Isis murdering kurds, Christians,jews,the wrong kind of Muslims, 911, Belgium,France Germany, the Uk, Canada more that offset people like the nut job in Vegas.   JHM4.   Leave the doors open, and these terrorist will enter.  Ler down your guard and they will attack.  If you have a compelling argument to show that they are not a threat....present it.  There are plenty of non brainwashed people willing to debate it.