Its 20 years since the horrific slaughter of almost a million people in Rwanda. The brutal attacks by Hutu militia against Tutsis shocked the world, with appalling pictures of the bloodshed captured by TV news crews. Mark Austin was one of those reporters sent to Rwanda at the time and now he's returned to mark the anniversary. What he finds is a remarkable story of hope to come out of the tragedy, through a controversial program bringing killers and survivors together to try and find forgiveness. And as the next generation comes of age, he sees the efforts to learn from the appalling events of the past and look ahead to what this nation hopes will be a better future.