Dealbreaker: Donald Trump and the Unmaking of the Iran Nuclear Deal

The Iran deal was a crowning moment of international diplomacy, allowing the world to step away from the edge of a self-created abyss. Donald Trump's decision to withdraw from this agreement threatens to return the world to that precipice.

Dealbreaker recounts how this deal was made, why it was broken, and what the consequences of that action could be.

When the United States made the decision in the 1980s to deny Iran access to nuclear technology, Iran was forced to turn to the black market...