The American century, far from being over, is on the way. The information revolution, which capsized the Soviet Union and propelled Japan to eminence, has altered the equation of national power. America leads the world in the new technologies. Its emerging military systems can thwart any threat. On the ''soft-power'' side, it projects its ideals and other countries follow. To prevent an information race, America must share its lead; to preserve its reputation, it must keep its house in order.