HARDtalk - James Glassman, US Under Secretary of State, Public Diplomacy and Public Affairs

The architects of America's global war on terror acknowledge that the conflict cannot be won by bombs and bullets alone. They say it is also a defining war of ideas in which a key weapon against Islamist extremism is 'public diplomacy' and the power of persuasion. On the anniversary of 9/11, Stephen Sackur talks to James Glassman, the State Department's new chief of public diplomacy. Is America now equipped to win a worldwide propaganda war?