The head of the World Council of Churches has asked PM Tony Blair to change his mind and make an unambiguous apology for Britain's involvement in the slave trade.
Archbishops Rowan Williams and John Sentamu have taken their message about slavery to YouTube. But are events to mark abolition of the transatlantic trade ignoring the key role of black people in its demise?
In a move that has been welcomed by campaigners, the Prime Minister has announced that Britain will sign up to a European convention to "stamp out" human trafficking.