EXCERPT News Analysis [18.30 23:03:07, edited] Marcia Klein flashes perfect dentition at the vid-units,and begins to speak, combining gravity with a dazzling smile. Images cyberblitz the screen behind her talking head: viruses, explosions, crashed helicopters, and nanochips. “This week alone we have seen the assassination of a leading Iranian cleric, a bomb attack upon the headquarters of the Chinese antinarcotics police, and perhaps most seriously, reports are coming in that the entire north American air traffic control system was closed down by computer terrorism for almost three hours yesterday afternoon…