US President Barack Obama has spoken on the phone to Iranian President Hassan Rohani. It's the highest-level contact between the US and Iran since 1979. So what does this mean for their future relationship? Marc Perelman puts the question to Stephen J. Hadley, former National Security Advisor to President George W. Bush.<br /><br />http://www.france24.com/en/taxonomy/emission/18004<br /><br />Visit our website:<br />http://www.france24.com<br /><br />Like us on Facebook:<br />https://www.facebook.com/FRANCE24.English<br /><br />Follow us on Twitter:<br />https://twitter.com/France24_en