There has not been a terrorist killing of a single American by anyone from the Muslim countries listed in the travel ban. Not one. It is these local terrorists we have to fear. They are the ones doing all the terrorist killings, Dylann Roof is one. 
Trump is a crazed lunatic for not paying attention to all this. So is Jefferson Beauregard Sessions, our AG. There will be more killings by local homegrown terrorists in the future. They are the ones we really have to fear.