The few damaged it for the many.
Some locations are far less random than others. This past week, I skated through one location, was stopped at another. I stood back at a busy location and counted some 100 who were turned away. As I approached, one who'd been turned away said, "good luck, you'll be the one." I was sent to random screening, too. When I pointed out to the gentleman at the known crew member checkpoint that sending everyone isn't very random he said, "exactly."
I enquired about it at one location, where they allowed that they'd caught a flight attendant with a large amount of cocaine. Another with a firearm.
Since that time, I've had my bag picked apart on several occasions, and others, simply passed through security, but none the less, a pain in the behind.
As TSA assume full control and wrests the program out of ALPA's paws, one may reasonably expect it to further erode.