Guests: Counter-terrorism expert Richard Clarke, journalist Dana Priest, actor Jason Alexander; via satellite, Rep Joe Sestak (D-PA), scientist/author Richard Dawkins

Topics: Iraq War hearings and Bush speech, Bill Clinton's effect on Hillary's campaign, rationalizing religion, environment and global warming, airline cancellations and wiring inspections

Guests: Columnist Thomas Friedman, EPA Chief Lisa Jackson, actress Janeane Garofalo, Ohio congresswoman Marcy Kaptur, author Richard Dawkins

Topics: Criticism of Barack Obama, health care reform, the senate, Iran's nuclear capabilities, religion in America, terrorism, Hollywood defending Roman Polanski

Guests: Evolutionary biologist Richard Dawkins, journalist Andrew Ross Sorkin, conservative commentator S. E. Cupp, comedian P. J. O'Rourke, journalist Joshua Green

Topics: Gene Cranick, zero-sum economic theory, Troubled Asset Relief Program (TARP), Christine O'Donnell, Rich Iott, climate change, religion

Interviewee: Maajid Nawaz (ex Islamic radical)

Panelists: Rev. Al Sharpton (MSNBC host & author of "Rejected Stone"), Michael Moore (filmmaker), Valerie Plame (co-author of "Blowback")

Panel Guest: Richard Dawkins (author of "Appetite for Wonder")

Topics: Obamacare's dysfunctional website, perceived strengths of each party, NSA spying on other countries, new evolution finding, Pope Francis, is Islam more dangerous than Christianity?, the minimum wage.

Neil Degrasse Tyson, Richard Dawkins, Adam Gopnik, Matt Welch, and Angela Rye.

Bill's interview guest is English ethologist, evolutionary biologist and author of the new book, 'Science in the Soul', Richard Dawkins. Bill's roundtable panel includes Washington Post columnist and CNN commentator Fareed Zakaria, Pulitizer Prize winning author and presidential historian Jon Meacham and four-time Emmy winning actor Jim Parsons.