practical -- that is a practical matter it would be almost impossible to detect? >> yes, mr. chairman. the intelligence community is concerned that they have the ability -- the capability to manufacture fraudulent passports. which is a concern in any setting. >> let me bring in the ceo and editor of foreign policy magazine, also author of national insecurity. welcome back. thank you very much. >> glad to be here. >> let's begin with what comey was talking about. this passport, this printing machine. first of all, how would isis have even -- where would this have come from? >> they've been gaining ground across syria and iraq and they went into a town where it was thought these machines existed and they took them over. >> government buildings? >> right exactly. and you know, we have to recognize that if you're going to have a terrorism mission, you're going to try to conceal your identity. you're going to try it across