Blair v Hitchens debate: Is religion a force for good?
27 November 2010 Last updated at 05:47 GMT
Former British Prime Minister, Tony Blair, has taken on the author and renowned atheist Christopher Hitchens in a debate on the value of religion.
Mr Blair, a convert to Catholicism, was arguing in favour of the motion "Religion is a force for good in the world" in the Munk Debate in Toronto.
Mr Hitchens, who is undergoing treatment for cancer, proposed that religion is the world's "main source of hatred".