David Corn on how the Left just couldn’t help embracing trutherism:

Years ago, when the 9/11 conspiracy theories were first emerging on the left, I wrote several pieces decrying them. (See here, here, and here.) My fear was that this unsound idea would infect the left and other quarters–discrediting anyone who got close to it. I even debunked a book promoting an unfounded 9/11 conspiracy theory that was published by Nation Books when I was Washington editor of The Nation magazine. (I tried to persuade the decision-makers of Nation Books that the book ought not even be published–and failed.)
The 9/11 conspiracy theory was just too tempting for many Bush critics…