When computers attack

ANYONE who follows technology or military affairs has heard the predictions for more than a decade. Cyberwar is coming. Although the long-announced, long-awaited computer-based conflict has yet to occur, the forecast grows more ominous with every telling: an onslaught is brought by a warring nation, backed by its brains and computing resources; banks and other businesses in the enemy states are destroyed; governments grind to a halt; telephones disconnect; the microchip-controlled Tickle Me Elmos will be transformed into unstoppable killing machines.