The other day, I got into a discussion with someone calling for Congressional hearings on the DeStefano 2004 study that is the latest to-do in anti-vaccine circles. I won't go into the background; you can read about it here. Instead, I'll just present the Storify curation of tweets. My interlocutor just didn't understand what she had read. There is nothing wrong with that. We all have areas in which we lack the requisite knowledge to fully grasp the subject. The real trick is figuring out whe...