Like the part where the supervisor is responsible for making sure signage is correctly displayed?

I believe the bigger scandal is that many of the so-called SSI sections that were (clumsily) blacked out are really pedestrian. See post #3 for example. No one doubts that there are some things that need to be kept secret, but if these represent TSA's standard of "secret information", it's pretty lame. And I doubt that's changed significantly since the date of this document.