Sorry MountainBear have to disagree with you. When I first came to the US in the mid-1980s I could not believe how lax security was at the airports I visited. Talk about the land of the free.
I know security has improved drastically since then but I know for a fact that you have put off a lot of my fellow countrymen or should that be persons (UK) from returning to the US including me with your abusive and rather petulent border staff. This is a great pity because the US is a beautiful country and on the whole the people are very friendly unlike us Brits.
Oh and who trained the 9/11 - or as we rather like to call it 11 September 2001 - pilots. I rest my case.