Ahead on the 12/22/14 Maddow show

Tonight's guests:

  • Bob Herbert, distinguished senior fellow at Demos, formerly an op-ed columnist for the New York Times, and author of "Losing Our Way: an intimate portrait of a troubled America."
  • Bill Richardson, former UN ambassador and governor of New Mexico, led several humanitarian missions to North Korea over the last two decades

And here's executive producer Cory Gnazzo with a preview of what we're working on...