In the grey zone, we are all both victims and perpetrators, says Giles Fraser, who has visited one of the major sites of the slave trade. In the grey zone, morality is no longer simple. We need honesty, wisdom and divine mercy to face the facts hopefully.

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.

Giles Fraser reflects on John Newton’s painful conversion from uncritical theology

Christians urged to back new anti-slavery campaign running throughout 2007 as millions around the world still wait to be set free.