Frankly, I'll bet he has a lot more information than he lets on, and no one can call him on this because of security issues. He knows this, so he uses it. Let me put it more directly. I think he is probably lying about what he knows and how carefully he has been informed. I don't think he is stupid enough to compromise national security, so he can lie about not knowing about the "secret" government for example, when in fact it has been a plan in place since Eisenhower, and he was actually taken to one of its sites. He lied about that, so it's a fair guess, he is lying about the rest.
regards