All the discussion over rights is interesting, but I would point out that the interrogation we endured was not done in the US, was not done by the TSA, but was in another country by someone who appeared to be an employee or agent of Delta Airlines. Now, it may have been done by mandate of the US government, I don't know. But, the person was at the gate and appreared to be working for or at least with the airline.

As someone who travels alot, it was just a major hassle. I certainly want to have secure travel. I am just skeptical of whether such questions are effective in making travel secure.