That's nothing to do with this particular person - US'ans have their delicate subjects, and I am sure it is some government agency rather than the president's self that imposes these rules - they are indeed ridiculous and paranoid, but they would and will be the same with any other president.
As long as we Europeans choose to depend on Uncle Sam's ample defense budget, rather than to keep up our own household, we will have to live with them, and their paranoia over certain subjects. It really is our own decision.
Apologies for straying off into politics.
BTW Steve, you must have heard certain countries have certain rules about insulting heads of state
