] CIA Director George J. Tenet warned yesterday that the ] %u201Cdesire for nuclear weapons is on the upsurge%u201D ] among small countries, confronting the world with a new ] nuclear arms race that threatens to dismantle more than ] three decades of nonproliferation efforts. ] THE DOMINO theory of the 21st century may well be nuclear, ] Tenet said in reference to the doctrine that led the United ] States militarily into Vietnam in the 1960s to try to prevent a ] communist takeover of Southeast Asia. We have entered a new ] world of proliferation. |