Tonight's guests:
- Dan Borelli, former senior FBI official, former member of the NY Joint Terrorism Task Force
- Michael Leiter, NBC News National Security analyst, former director of the National Counter Terrorism Center
- Amby Burfoot, editor-at-large for Runner’s World and winner of the 1968 Boston Marathon. He also ran in the Boston Marathon yesterday
And here's executive producer Bill Wolff with a look at what is planned for tonight's show: