The age of war with big armies is past; we live in the age of big intelligence -- secret organizations with huge budgets running vast infrastructures for collecting information, some of it stolen, and for confounding foes, sometimes violently. The Cold War was mainly fought on the intelligence battlefield, and victory in the new war on terror will depend little on the awesome American capacity to destroy the works of man, so evident in the first Gulf War, and depend much on outwitting a clandestine enemy who travels light and moves in secret.