I've been looking around. I can't find a specific source or training document that would indicate it so far. I think it's a really interesting question. I do h

I've been looking around. I can't find a specific source or training document that would indicate it so far. I think it's a really interesting question. I do have an anecdote that may help shed some light. I was coming back from dinner in Tijuana one evening with a friend who happened to be asian. We pulled up to the border crossing and handed over our passports. After calling my friend a 'banana,' the agent then asked us why we would visit a 'garbage dump' when we could go to Balboa Park instead. We were totally shocked. I got the feeling with many of the CBP agents I interacted with that they had a really distorted image of Mexico. Thus, anyone who goes there and isn't from there is probably up to no good. And if you're from there.......... Edit: I'm stereotyping based on my own experiences. Again, maybe I've had bad luck. I don't mean to imply that all CBP agents are bad folks.