Today's gun conversation: certain people are pretty sure they are super-awesome at convincing their kids not to touch guns. So that' problem's solved! Greg Dworkin rounds up polling news, where Clinton dominates all comers. The Village is unsurprised. Warren's message gets required acknowledgement. Does Huckabee matter? Christie still toast, loses allies, with no McCain "comeback" in the cards. Docs want Dr. Oz out. Where did this 420 thing come from? The exciting conclusion of "The Free-Market Fantasy," plus a brief peek at the cold roots of libertarianism. A follow-up to the "pattern recognition" discussion sparked by the FBI crime lab news: right or wrong, our brains are hard wired for this.