The CIA'S war against the Bush administration is one of the great untold stories of the past three years. It is, perhaps, the agency's most successful covert action of recent times. The CIA has used its budget to fund criticism of the administration by former Democratic officeholders. The agency allowed an employee, Michael Scheuer, to publish and promote a book containing classified information, as long as, in Scheuer's words, "the book was being used to bash the president." However, the agency's preferred weapon has been the leak. In one leak after another, generally to the New York Times or the...