Hmmm....working in the Middle East and dealing with the US military cowboys everyday, who see a clearance as a rough guide to where we would like them to go, and invariably tootle off in a completely different direction and then develop selective deafness when we try and alert them to all the oncoming traffic they are about to scare the bejesus out of, I would say the United States is one place I would be very scared to fly in. Sorry Mike, I know you'll take exception to that but I can only call it as I see it, and the Yank pilots over here are some of the least disciplined in every facet of flying going around.