We didn't know. For half a century, Western politicians and intellectuals have so explained away their inaction in the face of genocide in World War II. In stark contrast, Western observers today face a daily barrage of information and images, from CNN, the Internet, and newspapers about the parties and individuals responsible for the current Balkan War and crimes against humanity. The stories, often accompanied by video or pictures of rape, torture, mass graves, and ethnic cleansing, available almost instantaneously, do not allow even the most uninterested viewer to ignore the grim...