[xtracto]

As I put in another comment... I can believe that the BDO thought "That guy over there is behaving brown", which made him check him.

That's the problem with USA security, against say the one in Europe or the middle east (I think Israel has very good trained anti-terrorist immigration officers): In these other countries, there are a lot of darkish-skin people, so they really have to learn how to profile someone who is up to something. In the USA? I guess the majority of time they just use the skin color... and that's why they get a lot of false positive, and /very/ annoyed people.