In 2001-02 the United States has been hit by two quite different shocks, terrorism and recession. As usual in time of war, national defense is the highest priority for use of the country's resources. Although the opportunities for international warfare are limited, the challenges to the homeland...

I visited the People's Republic of China for two weeks, September 8-22, 1972, together with Professors John Kenneth Galbraith and Wassily Leontief, in the first of a series of visits by U.S. academicians and scientists arranged by the Federation of American Scientists and the Chinese Academy of...