Nerd:

"In fact, all the links you provide, except one, point to THE SAME STUDY. It was conducted by Miami Herald and USA Today, and they throw Knight Ridder in to make it look more authoritative although since the Miami Herald is part of Knight-Ridder this is meaningless. So we have a single study done by two organizations together. When you say several groups did studies and ALL OF THEM conclude something, you strongly suggest independent confirmation from more than two sources. But alas, there was none."

And your entire post was from one article in Harpers

"here is an article from Harper's which reveals what they did:"

Where is your independent confirmation?