He was answering an interview question. Not answering a question when you are asked is rude.
I think he is smart for not spewing his political views on TV. I wish more celebrities would follow his example.
People who think they are experts on everything just because the happen to be famous make me ill.
OTOH, he's an American. Therefore, he's a target and if he really wanted to minimize his chances of becoming the target of terrorists, then he shouldn't have said anything at all, imo. He's now announced to the world that he's afraid concerned about it and we can bet that a thousand terrorists who were not thinking about him before now are. Poor guy. He shoulda kept his yap shut.