Tonight astrophysicist and author of "Death by Black Hole: And Other Cosmic Quandries", Neil deGrasse Tyson.Jon begins with a look at the Scooter Libby trial with a summary as to how it all began. Furthermore, John Oliver, Senior White House Correspo... (more)ndent comments on the Libby trial in more detail. Finally, Jon looks at how the primaries are now being moved up to earlier and earlier dates. He discusses this with John Hodgman, Resident Expert.

Neil deGrasse Tyson