If you only have a hammer,
If you only have a hammer, everything looks like a nail. That saying applies to Ms. Wandall and her idea that red light cameras are THE solution.
Personally, I think it would be appropriate for Ms. Wandall to shift her focus to a campaign against buzzed driving and teaching defensive driving. Why?
The driver of the car in which Wandall's husband Mark was riding had been drinking. Not legally drunk, but buzzed. He hit the gas when his green arrow came on, evidently without confirming that opposing traffic had stopped. If he had not been buzzed he might have noticed, directly in front of him and coming straight at him, the headlights of the red light runner.
The driver was Ms. Wandall's brother. You can imagine that if it had been anyone else driving, Ms. Wandall (or anyone else) would have sued the driver for his last dime. But she couldn't do that, couldn't punish her brother, so she punishes US with her hammer, red light cameras.
Mark Wandall's death is a lesson for us to teach our children of driving age: Don't drive buzzed, and drive defensively. (They're connected, because if you are buzzed, you drop your defenses.) In particular, don't swing a left turn - even with a green arrow - until you've looked around. I would welcome a campaign by Ms. Wandall that focused on that particular lesson. She's a good speaker and could save a lot of lives, nationwide. And no one would have to install red light cameras.