Guests: Rev. Al Sharpton, CBS News correspondent Mo Rocca, journalist Zanny Minton Beddoes, commentator Reihan Salam, Ex ambassador to Croatia Peter Galbraith.

Topics: Uprising in Syria, Iran acquiring nuclear weapons, the Republican primaries, Rick Santorum becoming front-runner, anti-contraception legislation, valentines day, gay marriage and proposition 8 in california, Clint Eastwood Superbowl advert, Republican dividing America.

Columnist John Feehery, political commentator Chris Hayes, economist Zanny Minton Beddoes, musician John Legend, sportscaster Bob Costas

Panellists: Zanny Minton Beddoes, Edwin Lyman, Bill Nye, Michael Steele, Matt Taibbi.

This weeks guests include director of "Merchants of Doubt" Robert Kenner, former Republican member of the United States House of Representatives Tom Davis, Editor-in-Chief for the Economist magazine Zanny Minton Beddoes, co-founder of the black political blog Jack and Jill Politics and CEO of Cultivated Wit Baratunde Thurston, and actor and author of "Holy Cow" David Duchovny.