This is so weird. It used to be easy to find this act on congress.gov, but now all I can find online is discussions of it. Anyway, I believe this was passed in December of 2001, another casualty to freedom brought to us by the false flag of 9/11 and our traitorous congress. So everything they are doing might not be constitutional, but it is legal.
Preamble:
I wish I could remember which government official phrased it best when he said "the illegal we do immediately, the unconstitutional takes a little longer."