Originally Posted by W*GS
I disagree with Asimov here.
It's not ignorance, it's cognitive dissonance.
The people involved (I'm talking more the Beavises than the UltimateDumbassW/Keyboards) are smart enough to know what the science indicates. They're just too entrenched in their politics and their way of life to want to change anything. Their taxes might go up, so they build a wall which is anchored in the tiny sliver of research that supports their position, and then complain about consensus.