The Difficulty of Reporting from Iran

Today marked another massive, anti-government protest today in Tehran. As we considered what's likely to happen next, we've been told, "We're in unchartered waters." Bill Berkeley, who teaches journalism at Columbia University, is a former foreign correspondent for the New York Times and other publications. He's been to Iran four times for a book he's writing about the kidnappers who took American diplomats hostage during the revolution of 1979.