Lasting peace demands justice. But the demands of justice can sometimes block peace. That has been the dilemma facing the International Criminal Court (ICC) since it began work six years ago. Tasked with the noble mission of trying war criminals, its efforts have also been a powerful disincentive to the world's worst leaders to end their repressive rule and open themselves to arrest. Nothing has made that more clear than ICC prosecutor Luis Moreno-Ocampo's request on July 14 for an arrest warrant for Sudanese President Omar Hassan al-Bashir on 10 charges of genocide, crimes against humanity and war crimes in Darfur....