If the world’s awareness about diamonds and their tarnished journey to the west has grown, it is, in part, because of the fierce and fearless work of journalists like the Angolan Rafael Marques de Morais... Rafael is on trial in Angola for exposing murder and abuse in the mining industry. His accusers, the generals and companies who bear responsibility for these alleged crimes, were willing to settle this case before trial on condition that Rafael retract his claims.  In good conscience, Rafael refused to give them the exoneration they demanded. Instead, he offered only to admit that it is possible that they did not know about or order the abuses. As a journalist, Rafael is concerned with the facts... Since Nuremberg, international justice has held that those who know about, or should have known about, the actions of their subordinates or others whom they control, bear responsibility for the crimes that result... Nevertheless, many in positions of power, continue to insist that a lack of actual knowledge absolves them of any responsibility from their actions. Thanks to journalists like Rafael, excuses like that are no longer tenable.