The swelling ranks of sceptical scientists is now the largest whistle-blowing cohort in science ever seen. It includes some of the brightest: two with Nobel prizes in physics, four NASA astronauts, 9000 PhDs in science, and another 20,000 science graduates to cap it off. A recent US Senate minority report contained 1000 names of eminent scientists who are sceptical, and the term professor pops up more than 500 times in that list,