[puddingnomeat]

It doesn't matter that there's a barrier in-between if you're breathing the same air. We knew early that IR detection was more effective.

Oblivious compliance. People prefer the option that looks effective. Besides, it's cheaper.

[bryanlarsen]

Do you have a cite for that? Temperature worked fabulously to stop SARS-COV-1 but I was under the impression that it was fairly ineffective for SARS-COV-2. Giving every school a few thermometers would have been a lot cheaper than installing plexi glass.