Truly not trying to be critical... but I would never give my information to the TSA voluntarily. I did once when threatened with arrest after a simple opt out, but I even regret that. I wished I'd have read the FT threads about personal info and the privacy act first. I never travel with anything more important than my privacy.

You can bet they kept track of who you are and what they mailed to you. I had one of those 5.11 knives myself. I suspect you now think the cost of replacing the knife is preferable to the disgusting feeling you have with the TSA having your personal information. True?