Explorations – November 18, 2003

Guest Arthur Wiggins, co-author with Charles Wynn of The Five Biggest Unsolved Problems in Science.
Also: 1300 instances of lost or stolen nuclear materials in the U.S. in past 5 years; Iran complies with U.N;
Ozone exemptions; Scientist find gene linking three auto-immune diseases; Is hot cocoa good for you?;

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