A lot of this thread has been about zero tolerance approaches to things.

Your (much more recent than mine) link quotes the latest -

"The latest death was a 2½-month-old girl who died Sept. 20 in Kingman, Ariz., after being left five hours in a car in 100-degree heat."

And the two who climbed into a truck and presumably that was a kids accident that went wrong (like deaths where people get trapped in chest freezers).

While zero tolerance may be a laudable goal it confuses the world. The woman who goes into a shop saying 'It's ok I'll just be a few minutes' to people watching over (and has people they don't know also watching out fo rthe interests of the child) gets lumped into the same bucket as the nutter who leaves a baby for 5 hours in 100 degree heat. These are different things.