As the bicentenary of the end of the transatlantic slave trade approaches Jonathan Bartley says we are enslaved until Africa is free

As the UK commemorates the end of the slave trade, an original sculpture has been commissioned by Christian Aid and National Museums Liverpool from a group of Haitian artists representing their continuing struggle for freedom and human rights.

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.