Maybe.
But, do you think they’d have gotten any information, even bogus information, out of him once he was given his Miranda Warning?
He was already cooked before he even got off the plane, but the potential for getting even more information was still there.
My point remain that I do not think that he has any real valuable information that can help us more than we already know. We know that Al Qaeda in Yemen was responsible and hence we have to bomb and invade the hideouts of Al Qaeda terrorists in Yemen. That would be the most effective solution for the terrorism problem coming from Yemen or anywhere else in the world.