Shall I not get you started on "the prison industrial complex"?
I might be in favor of ditching flashing yellow lights. Yellow to warn you it's getting to turn red, sure. But the flashing yellow light is an invitation for dummies to plow head first into oncoming traffic. Intellectually they must know that it means yield because they got it on their driving test, but I'm thinking the part of the brain that stores that information dumps the second they walk out of the DMV. If the intersection needs a traffic light, just do it. Don't make it iffy because a significant number of our fellow motorists don't have good judgment.