1. I have submitted complaints, in writing, no response. Then I have then called the TSA customer line and they try to get a response from the FSD. Then I have written to the TSA Administrator when the TSA customer service line says "The FSD at that airport not only refuses to talk to you, he refuses to talk to us." Still waiting (after a year) for a response.

2. I have been to airports where they claim that they don't have complaint forms. In those cases I sometimes request the Screening Manager to be called. I feel that a direct comlaint, to the Screening Manager (not the senior person at the screening area - the next level up who works in an office) is more satisfying (and likely to have more positive results) than a written complaint which is ignored.