To be fair, the German TRAs are something the Spam Secret Service goons require - it was the same with Bush.
Although I'd heard that the odious Bliar was once told that the SSS wanted the same in London when Bush was due to appear. For once Trust-me-Tone did the right thing and refused. "He can't come, then", was the response - to which Bliar allegedly said "That's fine by me..."
The USMC (or whoever they are), who follow in helicopters wherever PotUS goes, were in flight planning at Brize once - and were astonished to be told that no, the world and London TMA were not going to come to a halt for them - they'd have to use the heli-lanes like everyone else!
When visiting Stonehenge once, Obama slipped his leash and simply wandered over to chat with an unsuspecting local family, much to the evident chagrin of the hatchet-faced goons in suits and shades:
He seems totally genuine:
Family's 'Incredible' Obama Stonehenge Surprise