Dropping the Knife: Gambia

According to local charities in Gambia, 80 per cent of girls undergo female genital mutilation. Despite international outrage, campaigners and victims are getting little help from the developed world or from the country's former colonial power, Britain. For Our World, Sue Lloyd Roberts travels to Gambia where she follows local activists as they try to persuade professional cutters to put an end to the centuries' old tradition.