Tonight's guests:
- Jack Hanna, Director Emeritus of the Columbus Zoo and Aquarium, host of "Into the Wild" and "Wild Countdown"
- Simon Johnson, professor of economics at MIT Sloan, contributing business editor at the Huffington Post, and serves on the panel of economic advisors to the Congressional Budget Office, former chief economist for the IMF
Here's senior producer Cory Gnazzo with a look ahead: