How to tame the media, not be tamed by it - Dan Gillmor - Salon.com

To use an admittedly extreme example, when you're doing a story about the Holocaust, you don't need to balance it by quoting a neo-Nazi. Nor is it "showing balance" to quote a climate-change denier in every story about global warming -- not when scientists who study these issues have concluded with rare, near-universal fervor that climate change is not only real but presents an existential threat to civilization as we know it, if not to our species.