Bianca Jagger on celebrity power for political campaigns
Jamie Oliver and Joanna Lumley are celebrities who have put their names to successful campaigns, although actress Sharon Stone's offer to "kiss just about anybody for peace in the Middle East" has yet to come to fruition.
David Thompson asks if sprinkling a bit of celebrity stardust helps campaigns or could end up being a poisoned chalice. He spoke to former Downing Street adviser Justin Forsyth and human rights campaigner Bianca Jagger.