It's been six years since high-ranking American diplomats have gotten together for serious business. But on Thursday, that was all set to change.
The Takeaway talks to Gary Sick, a senior research scholar at Columbia University. Also joining the conversation is Trita Parsi, President of the National Iranian American Council.
The United States lost Iran as a regional ally when the Shah was overthrown in 1979. The same year, students took dozens of Americans hostage at the US Embassy in Tehran.
In part II of the series on US policy toward Iran, Jeb Sharp examines America's relationship with Tehran during the reign of Mohammed Reza Shah Pahlavi.