CNN CNN Newsroom With Carol Costello November 17, 2015 14:36:00
Syrian terrorists can come through greece into france. they have to fly into the united states. so does that make it easier for american authorities to stop them? >> in a way it does. you are looking at a mechanism of control at that point where the airplane lands and they get out and have to go through u.s. customs. and when you watch u.s. customs and border patrol operations they are pretty extensive. they are not foolproof but they are pretty expensive and they work very hard too get intel from sources over seas and work very hard also to apply that intelligence to actually countering the m...