In reference to Cat Stevens, it is very, very important we have accurate information on our terrorist watch list and our no fly list and that you have a remedy.

But as you said, there are going to be those that have no record and cannot be detected in that capacity so that is why you have to have other layers of security.

Well, your premise is correct, that we have to first guard against those who have an affiliation with terrorists and a connection, and so we have watch lists and systems that can make that connection.

Asa Hutchinson Quotes