David Ropeik is an international consultant and widely sought-after public speaker on risk perception and risk communication. Ropeik is an instructor at the Harvard University Extension School's Environmental Management Program and taught risk perception and risk communication at Harvard School of Public Heath (2000-2006). He was a commentator on risk for NPR Morning Edition program and has been a guest host for NPR's The Connection. He has written articles about risk perception for "The New York Times, The Washington Post, USA Today, LA Times, " and "The Boston Globe, " and" Nova" among other...