Grasping Numbers in Genocide (IMAGE) University of Oregon Caption Paul Slovic says moral intuition doesn't work when it comes to grasping rising numbers of death in genocide. He says the world needs a rigidly defined threshold on when intervention must occur. Credit Photo by Jim Barlow Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.