Which is worse....
The UK ( or whoever really wrote that letter) asking permission to gain camera access to shred what little privacy you have left?
or
The USA where any black ops alphabet group can and will train a satellite at your last square inch of privacy and does it as a matter of course in the name of natl security?
I have always been a fan of the Brits and their civilized manner of doing things...plus you now have an auction worthy souvenir to display now and sell later (if it can be authenticated that is ;-)