Had a first today in PHL. An employee goes through before me. She was chatty with the agents and had an airport badge she put in a bowl to go through the x-ray, so I'm positive. She set off the machine with a beep. I was then waved through and had no beep but was directed to do the random hand swipe. I actually did a double take and verbally confirmed with her that I was the one to have to step aside. Modified random selection. It's all a joke anyway, so I'm not upset about the "security" aspect. The brazen disregard for their own rules was the more shocking and annoying part.