Iranian President Hassan Rouhani, delivers a speech during an annual rally commemorating anniversary of the 1979 Islamic revolution, at the Azadi (Freedom) Sq. in Tehran, Iran, Tuesday, Feb. 11, 2014. Rouhani on Tuesday called for “fair and constructive” nuclear talks with world powers as the nation marked the anniversary of the 1979 Islamic revolution with massive rallies, complete with anti-American and anti-Israeli chants. Tuesday marks the 35th anniversary of the revolution that toppled the pro-U.S. Shah Mohammad Reza Pahlavi and brought Islamists to power. The Azadi, ‘Freedom’ tower is seen at rear right. (AP Photo/Vahid Salemi)