The highlight of the annual meeting of the American Association for the Advancement of Science (AAAS) last week was an impassioned session in which scientific leaders, including molecular biologist David Baltimore, made clear their views on the fraught relationship between science and the Bush administration. The discussion was organized by the Union of Concerned Scientists in the wake of revelations about how the administration's political appointees have sought to control the messages communicated by scientists to the public, including attempts by the NASA press office to muzzle climate scientist James Hansen (see page 896).
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