The delicate strategic dance between the Obama administration and Iranian President Mahmoud Ahmadinejad continues: The U.S. has offered to attend direct talks with Iran aimed at resolving an ongoing dispute over Iran's nuclear program. But why now? The answer may be more complex than you think. The Takeaway talks to Gary Sick, a senior research scholar at Columbia University. Also joining the conversation is Trita Parsi, author of Treacherous Alliance: The Secret Dealings of Iran, Israel and the United States and President of the National Iranian American Council and President of the National Iranian American Council.