Tonight's guests:
- Michael Isikoff, NBC News national investigative correspondent
- Congressman Adam Schiff, Democrat of California, who is calling for an investigation into the IRS under both the Obama and Bush administrations
- John Feinblatt, chairman of Mayors Against Illegal Guns and chief policy advisor to New York City Mayor Michael Bloomberg
And here's executive producer Bill Wolff with some of the easier words to preview of what's on the show tonight: