I think the refugee problem is Europe is vastly worse than we have in the United States.

I think the refugee problem is Europe is vastly worse than we have in the United States.

You've got a huge American population, you've got a small, small, small subset that is radicalized, and you have an even smaller subset that actually takes action. And you can't cover everyone who has some contact, someone bad. What you need is offense overseas, defense at home with intelligence and law enforcement, and really deep engagement with these communities.

I think the vetting we have for refugees is vastly better than the Europeans have.

We're not going to have a perfect batting average and it's important that Americans understand that.

We have a Muslim population which is better off economically, better engaged, and less drawn to the fight in ISIS. But as we've seen in places like California and elsewhere, we still have a threat, even if smaller.

They [ French] still have an open border in Europe. And they have a Europe which doesn't have an integrated intelligence system like we do in the United States.