so, bob, where do they start now? a country that was under the highest of all possible alerts, had been attacked ten months ago, this has now happened again to this country. where does intelligence in france even start? >> well, erin, i think we've talked about this. the french are very, very good. i've worked with them. they are competent, they have smart people on this they monitor the net, they know who all these people are, they have a very good national identification system, they know about the cells in belgium, and where do they start? the problem is so vast. but more than that is these people have learned if you really want to carry out an operation and get away with it, you give instructions and orders face to face. they use couriers. if you have a courier in raqqah he comes across as a refugee. or even turkey, they come in to the country, say all right we're going to hit these targets on this day. and coordinate these people and get money to them. and so they're avoiding the