Oh, yes, I've "heared" of terrorism. It's in the news quite a lot these days. But the ban on travel from Venezuela has nothing to do with that. This is just Trump displaying more bluster toward another head of state he doesn't like, in this case Nicolás Maduro. 

Don't get me wrong. There's plenty of reason to dislike Maduro, but closing the door to him and other government officials only ends up hurting the Venezuelan people in the long run.

Venezuela is in severe shape, and a goodwill response from the U.S. would go a long way toward creating a more sympathetic relationship with that country. Set the humanitarian concerns aside for a moment and just consider the politics. This is a window of opportunity to nurture good relations with a Latin American country that we've had an iffy history with, and an oil-rich one at that.

It's called acting in our own interests.