Iran reform candidate Mir Hossein Mousavi and his wife, Zahra Rahnavard, have emerged as the face of the country's political opposition. Haleh Esfandiari, the director of the Middle East program at the Woodrow Wilson International Center for Scholars, and Hooman Majda, journalist and author, discuss the key players in the opposition movement.

Thousands gathered at rallies to celebrate the 30th anniversary of the Islamic revolution, when Ayatollah Khomeini returned from exile. View photos by NPR's Tom Bullock.

U.S. economic sanctions leveled against Iran over Tehran's nuclear program further fueled debate about the possibility of U.S. military action against the country.

A relatively unknown figure before he became mayor of Tehran in 2003, Iran's ultra conservative and outspoken president has ushered in a new era of hard-line policies.