This discussion touches on the issue of peer review, as well as much else that we tend to discuss in this forum. -http://thesciencenetwork.org/programs/the-science-studio/panel-with-lord-martin-rees-patricia-smith-churchland-and-ac-grayling-I have doubts about the attitude of Martin Rees to issues like GM foods and Ecological dangers, but on the other hand I found A. C. Grayling's historical perspectives most helpful.