Here, from a local TV news station in Albuquerque, is a report on how TSA agents, those people who are searching your stuff and "touching your junk" during airport screening, are exempt from such searches even though they bring themselves, their bags and their backpacks into supposedly secured areas.
The clip is a couple of years old but the TSA exemptions it reports on are still in place. It is but one more example of how Homeland Security cares more about hassling innocent air travelers than it does about providing fair and effective security.