Miles Barnett gritted his teeth at the sight of Emmanuel DeRusso, clad in a tee shirt with four Indians on horseback holding rifles: Homeland Security, Fighting Terrorism Since 1492. DeRusso was entertaining a group of his admirers on the stage of the lecture hall where he had chosen to defend his dissertation. Who else would wear a tee shirt to his dissertation defense? What kind of arrogant bastard would invite all of his friends to attend?