Having been the best friends of some of the nastiest putschists and warmongers on the planet, diamonds are slowly but with considerable difficulty coming clean. African countries are relying on an international certification programme to open up new markets for legitimate diamonds, but it is impossible to know how many gems are still evading the controls.

A decade after the worst maritime disaster in recent history, relatives of those killed when a Senegalese ship sank in the Atlantic wait for justice.

Having been the best friends of some of the nastiest putschists and warmongers on the planet, diamonds are slowly but with considerable difficulty coming clean. African countries are relying on an international certification programme to open up new markets for legitimate diamonds, but it is impossible to know how many gems are still evading the controls.

A decade after the worst maritime disaster in recent history, relatives of those killed when a Senegalese ship sank in the Atlantic wait for justice.