Raise your hand if you are surprised by this news? What? Nobody? I didn't think so.
Entry level requirement is a GED. An hour-long training session on "professionalism" isn't going to turn a bunch of HS dropouts into ethical, responsible people if they weren't already there.
(Which is to say that i don't mean to paint every TSA employee with the same brush - it's just that the bad apples have more power to "make a difference" than the good ones do. Some of these people are just good folks who are trying to keep people safe and earn a decent living. It's not their fault the entire premise of their agency is flawed and their leadership is more interested in CYA than in actual safety.)