New Yorker writer Michael Specter was on "The Daily Show" last night to talk about his new book, "Denialism". Specter makes the argument that Americans are in denial about the actual risks and benefits involved in science and medicine. We're too paranoid, he says, about vaccines in particular, especially recent flu vaccines. But is Specter in denial about his own denial? As Stewart points out, there are some clear risks that Specter is perhaps willfully ignoring to make his point. What do you think?