isis' first leader, the founder of the group, if you will, abu musab al zarqawi, who really bought thistream, was killed by americans. does isis want to attack the u.s., yes, absolutely. are all the refugees that are trying to leave their country dangerous people? these are people who are leaving by and large terrorism. they are leaving because they are terrified and cannot stay home. but, but -- >> less disenchanted than the refugees here? >> look, refugee populations, you can't summarize them all. 7 this is a fluid population. the vast majority, the overwhelming majority are people who are leaving violence. are there some wolves hiding among the sheep, yes. there seems to be. but there's a difference -- what the debate in the u.s. fails to understand is that it's very different in europe than it is in the u.s. so people arrive from turkey, that's the main gateway out, they go to greece, no real regulations, no controls, and then once they're in europe, there are no controls anymore in europe so they end up here or back in brussels and go under the radar. the refugees that will be take