Imagine a universe where a man can gun down women and children anytime he pleases, knowing he will never be brought to justice. A place where morality is null and void, and arbitrary killing is the rule. A place that has been imagined hitherto only in nightmarish dystopian fiction, like “1984,” or in fevered passages from Dostoevsky—or which existed during the Holocaust and Stalinist purges and the Dark Ages. Well, that universe exists today. It is called Iraq. And the man who made it possible is George W. Bush.