HOME / Explainer : Answers to your questions about the news. The Unanswered Questions Choose the Explainer Question of the Year for 2011. By Daniel Engber|Posted Wednesday, Dec. 21, 2011, at 12:10 PM Tweet (If the poll does not appear below, please try again later.) Return to article. Tweet MYSLATE Save this story. Follow all Explainer articles. Follow the briefing section. Follow stories by Daniel Engber. MySlate is a new tool that lets you track your favorite parts of Slate. You can follow authors and sections, track comment threads you're interested in, and more. SLATE'S MOST VIRAL Who Said It: Toronto Mayor Rob Ford or Simpsons Mayor Diamond Joe Quimby? Is Wal-Mart in Trouble? Is Amazon to Blame? Is Your State Bird a Stupid State Bird? What It Should Be Instead. Daniel Engber (@danengber) is a columnist for Slate. Send him an email at firstname.lastname@example.org. Click here to load comments.