CNN Erin Burnett OutFront November 24, 2015 00:34:00
On a tourist visa, just come in through customs and you're here for 30, 60, 90 days. how likely is it that isis has not already done that? >> we don't know. everybody is worried about the refugee entry, using the refugee program as some sort of way to enter isis into the country. i don't really see that as the big threat. the big threat are these clean passports. americans and europeans. and, you know, as we've seen, the europeans are very angry about the schengen agreement where you can carry weapons and barely see a border officer. >> right. >> the united states also looking at this with thi...