Keep in mind that in the Southwest US, and that part of AZ in particular, there is the huge problem of smuggling both people and drugs across the Mexican border. I myself have been given the 20 questions treatment on that stretch of highway. Did you also notice the Border Patrol trucks everywhere in the desert south of the highway? It's been an issue for years there, made that much worse in the shadow of 9/11 and subsequent anthrax attacks. I, too, am sorry you feel slighted by this search and hope it was the only negative part of your trip here. But look at it this way: You didn't fit a profile to be stopped, but instead you did NOT fit the profile of folks that they were letting through. That was the 95% of cars that were just US citizens who were just going to/from CA as part of daily routine. I know, it's really the same thing, but this may be a different way of looking at things. You may also have been searched if you were a US citizen acting nervously, a Mexican national in a van with 20 people, appeared to be of street gang affiliation, you get the idea. It is a difficult time here in the US; one of unprecedented nervousness about out security in our homeland. We have to do all we can to reduce the risks to us all, including yourself when you were visiting the US, in any way we can. Since it is unrealistic to stop every vehicle, it is best to concentrate of the <5% that are somehow non-routine and out of the ordinary. Such as a Swiss vacationer. Sorry again that you were offended, but think of how stupid it would be, in light of known threats, to experience another tragedy, say a small nuke detonated in downtown LA or Phoenix, and find out that it was driven right across the border and never been given a chance to be stopped because it is "wrong" to stop unusual traffic. Glad you are safe and hope you try to understand the reasons.