I reckon the security is there to protect him from us more than anyone else.
Anyway, he is clearly entitled to have it provided at our expense but wouldn't it be a nice gesture if he decided he'd cover the cost himself, especially when he's doing business which directly or indirectly benefits Bliar Inc. He could even claim it against tax and save himself a few more quid...
What sort of rabid rantings would we be hearing from the loony left members of the CF cast if Thatcher had been doing likewise I wonder...