There's no question why, having cited Kleck's numbers, the NAS told us his name. The question is why they cited his numbers to begin with, if they were as discredited as you and Jonm1010 are saying? Maybe they should start reading NeoGAF to keep up with the latest advances in the social sciences?
The aliens analogy was ridiculous. If you scaled up from the sample, you would conclude that 20 million Americans
believe they've seen an alien spacecraft, not that
they have. (As it turns out, that figure is in line with
more recent surveys. So.)
Again, as a layperson, I want to know why the National Academy of Sciences cited Kleck's figures as
possibly correct in a report to the federal government if they're as obviously incorrect as you claim. As between you and the NAS, I'll give the benefit of the doubt to the NAS. That doesn't mean Kleck's numbers are right or that his methodology isn't suspect; it means I'm not going to write off his figures.