I guess it's true what so many of us have been saying: that we are presumed guilty at checkpoints and that the TSA doesn't have to prove we are guilty.
TSA exempted the TSA 001 system of records from the notice requirement because the information typically relates to a criminal investigation.
How can there be a criminal investigation if no crime has been committed?
From the Federal Register:
Somebody with more legal knowledge than I needs to interpret this
However, when I read 5 U.S.C. 552a(c)(3), (d), (e)(1),
(e)(4)(G), (H) and (I), and (f) no where do I see where the TSA is exempted from being required to tell you what they are going to do with the information they collect.