The Justice Department's decision to subpoena a New York Times reporter this week has convinced some press advocates that President Obama's team is pursuing leaks with the same fervor as the Bush administration.
James Risen, who shared a Pulitzer Prize for disclosing President George W. Bush's domestic surveillance program, has refused to testify about the confidential sources he used for his 2006 book "State of War: The Secret History of the C.I.A. and the Bush Administration."