I'm all for them. I live near a bad intersection where almost daily, someone guns it when its yellow and shoots thru a red light at 50mph in a 25mph.
Cops cant be everywhere, and as someone that's been t-boned by someone who ran a light (an insurance salesman! Fastest settlement I ever had in all the accidents I've heard of!)...its one more piece of evidence that can help sweep away a frivolous lawsuit....or when witnesses "arent sure" etc etc.
I also think they should put a big sign that says "THIS INTERSECTION IS VIDEO MONITORED" Hell, even if it isn't, just that sign alone will slow down many.
I'm used to the kids running the lights...and the old lady not knowing better. Its the guys in service trucks, 18 wheelers and dump trucks wooshing thru a school area that annoy me. If they value that commecial license, slow down.