these men, you're talking about less than a year and that means that they can be underground, they'll never be found out. and that's going to be the challenge. >> and, juliette, what about in the united states today? you have the national security adviser ben rhodes speaking, for the white house today saying they know the isis has the ambition to strike the united states but they don't think it yet has the capability. many people feel that that statement is, at the least, assuming way too much. >> i think what we have to assume is that there are people in the united states who are going to try to do something that is sort of this lone wolf terrorism that we've both gotten used to, but has minimal impact. it's not paris. and you know, maybe a few people die and that's a tragedy but it doesn't have the sort of consequence of what we saw in paris. but the capability of people to plan something in the united