The United States, for example, imports about 1.5 million barrels of oil per day from countries whose governments are repressive and corrupt - governments where, to use a phrase that author Leif Wenar favors "might is right." Wenar, a professor of law and philosophy at Kings College, London, argues that the U.S. and other Western countries have the power to stop importing the "blood oil" that flows from these authoritarian states.