Malcolm Gladwell on Syria, the Saudis, Mandela and MLK
1 November 2013 Last updated at 10:36 GMT
Martin Luther King "manipulated public opinion" and played a "magnificent, hilarious, brilliant trick" on the media, according to writer Malcolm Gladwell.
The author of David and Goliath: Underdogs, Misfits and the Art of Battling Giants spoke to Andrew Neil, Michael Portillo and Diane Abbott about Syria, Saudi Arabia, Nelson Mandela, the power of the underdog - and the importance of shame.
And he said "shame was an incredible powerful emotion", as they looked at the power of social media today.