Will Rudy Giuliani ever shut up about 9/11?

This man is out of his mind. Everything he discusses on the campaign trail goes back to 9/11. A few weeks ago, while attending a National Rifle ociation event he said that his position on guns had changed because of 9/11. He seems to invoke it anywhere he goes, even talking to reporters about it a few weeks ago while attending a NASCAR race in New Hampshire. Does this man have anything else to offer?