How the World Can Be Saved, Redux.

Discusses proposals for dealing with what experts call a dangerous new phase of nuclear proliferation. Solution that was proposed by a small political and technical elite more than 60 years ago; Debate over internationalism versus unilateralism; Confession of Pakistani scientist, Dr. Abdul Qadeer Khan; Proposal of U.S. President George W. Bush to shut down the black market; How Mohamed ElBaradei, director of the International Atomic Energy Agency, is urging multinational controls on making materials that can be used for nuclear arms; Views of analysts; Efforts at unilateral and global controls in the past; How the current crisis marks a dangerous escalation; Outlook.