Yes, I believe that any kind of a bomb is in play. Let's hope they can never surprise us and go nuclear.
I agree. For some reason, I think it will be car bombs. This has been the weapon of choice in the Middle East for years. It wouldn't take WMDs at each of these locations to send all of NYC into a panic - just your average run-of-the-mill pipe bomb or car explosion would do it.
Oh wait... That's right. The media would say "it's not terrorist related" and would blame it on the transit police or street cop who was unfortunate enough to be in the wrong place at the wrong time.