Flynt Leverett, a professor at Penn State University's School of International Affairs, discusses the biggest sticking point in Iran's nuclear program negotiations with the P5+1 and why Obama won't take necessary political risks to make a deal.

Adam Hochschild, author of To End All Wars: A Story of Loyalty and Rebellion, 1914-1918, discusses his TomDispatch.com article on the enduring folly of the Battle of the Somme, that epitomized the bloody futility of WWI.

Author and historian Jim Powell discusses how Woodrow Wilson's decision to get America involved in WWI brought about disastrous consequences, including the rise of Hitler, Lenin, Stalin, and WWII.

John Glaser, editor of Antiwar.com, discusses why France torpedoed the Iranian nuclear negotiations at Geneva and the chances for a deal in the near future.

Reza Marashi, Research Director for the National Iranian American Council, discusses the diplomatic progress on a failed but nearly-completed Iranian nuclear deal in Geneva, and why pro-Israel Republicans suddenly love France and the UN.

Gareth Porter, an independent investigative journalist and historian, discusses the apparently imminent deal on Iran's nuclear program; why Obama can't avoid confronting Israel if he wants to make peace with Iran; and the CIA's vengeful drone strike on Pakistani Taliban leader Hakimullah Mehsud.

Muhammad Sahimi, a political columnist and professor of chemical engineering, discusses how Saudi Arabia and Israel are using terrorist groups to derail Iranian nuclear negotiations.

McClatchy journalist Roy Gutman discusses the rapid progress being made on an Iranian nuclear deal; the US's recognition of Iran's right to enrich uranium and have a peaceful civilian nuclear energy program; and the remaining obstacles to normalized US-Iran relations.

Will Grigg, keeper of the Pro Libertate blog, discusses the "object rape" of David Eckert by Deming, New Mexico's brutal police thugs; how the war on drugs has transformed peace officers into anti-narcotic paramilitary soldiers; and the need for a legislative revolt against qualified immunity for cops.

Libertarian activist Adam Kokesh discusses his unexpected release from jail ahead of his sentencing in January, and why he pleaded guilty to charges - stemming from his infamous Youtube clip in defense of Second Amendment rights - that could get him 7 1/2 years in prison.

Eric Garris, co-founder of Antiwar.com, discusses the just-released FOIA documents explaining one of the reasons the FBI was monitoring Antiwar.com and its staff for at least six years.