[perl4ever]

A coworker of mine went to Pakistan and then was not allowed to come back for quite a while. I don't know if it was the proverbial "no fly" list or something else, but eventually he was allowed back.

I remember reading about someone who was denied entry to Canada because they brought anti-depressants with them.

You have no rights traveling across borders, and it's not just US officials that are arbitrary and unreasonable.