John Brennan and John Kiriakou worked together years ago, but their careers have dramatically diverged. Brennan is now on track to head the CIA, while Kiriakou is headed off to prison. Each of their fates is tied to the so-called war on terror, which under President George W. Bush provoked worldwide condemnation. President Barack Obama rebranded the war on terror innocuously as “overseas contingency operations,” but, rather than retrench from the odious practices of his predecessor, Obama instead escalated. His promotion of Brennan, and his prosecution of Kiriakou, demonstrate how the recent excesses of U.S. presidential power are not transient …