Bush not only wants to close London between Whitehall and The Windsors HQ, his secret service has already agreed with the Met allowing them a 'licence to kill'. Yes,anybody beleived to be a threat to Dubyas life could be shot....So any non-caucasian walking around the centre of town around the 19th - 21st of November may be advised to wear a bullet proof jacket.
Oh he'll also carry a Briefcase of Mass Destruction nicknamed 'the football'. Don't ask.

Watch out for around 400 American spooks to compliment all the military and spies currently swarming around said palace currently slippinginunder cover of the 'other' scandal.

Interestingly the Met gets training off dodgy US-based HSS International and Jim'real fighting' Wagner who also trains the Isrealis in order to increasde their levels of ultraviolence and 'markmanship'.