We've seen them attack in London, for example; we've seen them attack in Spain; we've seen them attack elsewhere, so I think we have to operate on the assumption that they do have some capability and they certainly have the intent.
We can't be in the position any longer where we are paying the burden and bearing the burden for countries that won't cooperate with us and take their own citizens back.
We have to operate with a new level of cooperation and commitment with members of the international community,