Middle East turmoil and the US response

The Middle East is in turmoil following the murder of the American ambassador to Libya and assaults on various US embassies across the Muslim world. Roula Khalaf, Middle East editor, and Ed Luce, chief US commentator, join Gideon Rachman to discuss what recent events say about the internal stability of post-revolutionay Libya and Egypt and President Obama’s policy towards the Middle East. How will these and the other regional concerns in Syria, Iran, and the Palestinian territories affect the US election?