Being a former medic in the US Army, I've stuck with my belief of "Do not cause further injury to the patient." Then comes the TSA mindset of "All areas must be screened." It's a difficult balance. I just try to utilize every resource I have to ensure that the passenger does not pose a threat without causing any more pain (minus the inconvenience). It may result in a slightly longer screening process, but I think I satisfy TSA's requirements while reducing the possibility of inflicting any more physical pain. I can't stop the mental anguish of being at a TSA checkpoint, though.