A potential new energy source so controversial that people once regarded it as junk science is moving closer to acceptance by the mainstream scientific community. That's the conclusion of the organizer of one of the largest scientific sessions on the topic -- "cold fusion" -- being held here for the next two days in the Moscone Center during the 239th National Meeting of the American Chemical Society (ACS). "Years ago, many scientists were afraid to speak about 'cold fusion' to a mainstream audience," said Jan Marwan, Ph.D., the internationally known expert who organized the symposium. Marwan heads the research firm,...