Nuke deal: World powers, Iran seal breakthrough framework

LAUSANNE, Switzerland -- Capping exhausting and contentious talks, Iran and world powers sealed a breakthrough agreement Thursday outlining limits on Iran's nuclear program to keep it from being able to produce atomic weapons. The Islamic Republic was promised an end to years of crippling economic sanctions if negotiators transform the plan into a comprehensive pact.

They will try to do that in the next three months.

The United States and Iran, long-time adversaries who hashed out much of the agreement, each hailed the efforts of their diplomats in Switzerland. Speaking at the White House, President Barack Obama called it a "good deal" that would address concerns about Iran's nuclear ambitions. Iranian Foreign Minister Mohammad Javad Zarif called it a "win-win outcome."

Those involved have spent 18 months in broader negotiations that were extended twice since an interim accord was reached shortly after Iranian President Hassan Rouhani entered office.

That deal itself was the product of more than a year of secret negotiations between the Obama administration and Iran, a country the U.S. still considers the world's leading state sponsor of terrorism.