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After more than 20 months of negotiations, a landmark deal was reached Tuesday between world powers and Iran that curbs Iran’s nuclear program in exchange for the easing of economic sanctions. The deal reduces Iran’s stockpiles of enriched uranium and the number of its centrifuges by two-thirds. It also prevents Iran from producing weapons-grade plutonium. 

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On Wednesday, President Barack Obama announced a stunning policy shift on Cuba. We discuss the policy changes and local reaction to the news. 

Should the United States Get Involved?

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With Iraq on the brink of imploding as city after city falls to fighters from the Islamic State in Iraq and the Levant (ISIL or ISIS), we talk to a panel of experts about how we reached this point and what, if anything, the United States should do.

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He was a polarizing and enigmatic president, not unlike the man who would succeed him 100 years later. We talk with Pulitzer Prize-winning author of a new biography of President Woodrow Wilson.

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North Korea is warning of a nuclear attack against the United States. We look at how realistic the threat is, and how things have escalated in the Democratic People's Republic of Korea.

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Former United States Senator Charles Percy died this weekend at the age of 91. We revisit Percy's 1984 appearance on Chicago Tonight, and hear about his political philosophy and his presidential aspirations.