What is wrong with this picture? We learned this weekend that a Spanish judge, Baltasar Garzon, is preparing to prosecute six Americans who worked as senior legal and policy advisers to former President George W. Bush - including former Attorney General Alberto R. Gonzales and Undersecretary of Defense Douglas J. Feith. The purported crime? The opinions they provided Mr. Bush supported the use of torture against enemy combatants. Most Americans would find this assertion of what has come to be called “transnational law” to be troubling on several grounds. Its application is an affront to due process and the rule...