Explorations – September 25, 2007

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1) Nuclear power on a come-back trail
2) Calif. sues auto makers for global warming
3) Origin of dinosaur-killing meteor found?
4) Nobel Laureate says manned space program is a waste of money.    
Notes: Credits:
Guest: Dr. Janna Levin of Columbia, novelist and theoretical physicist, speaks of cosmology and artificial intelligence, and writing novels about them, esp. as a woman.