Isn't that comforting to know? The TSA guy or girl feeling your "junk" could be a rapist or pedophile. Homeland Security did acknowledge some have pass through the system. There is no way to know if Department Homeland Security keeping their mouth shut.
(The AirSafe.com News) The TSA serves a very important and vital role in airline security, and all of their employees are required to pass security and background checks. However, those checks in the past have been less than thorough. For example, in 2004, the Department of Homeland Security (which includes TSA) released a report that stated that TSA had allowed some screeners to perform their duties before their criminal background checks were complete, and allowed others to continue working while problems with their background checks were resolved. Even if this problem no longer exists for current applicants and employees, a more serious problem may be that the current system of background checks may have allowed those convicted of rape and other sexually based offenses to join TSA.
The 2004 DHS report stated that federal regulations (49 CFR. § 1542.209) specified were 28 kinds of felony convictions that would have disqualified an applicant for a TSA screener position, including rapes or crimes involving aggravated sexual abuse, but only if those convictions had occurred in the previous 10 years. It implies that a person convicted of rape, attempted, child molestation, or similar crimes may not be required to report such convictions during their background check and may be allowed to perform pat-down searches on passengers