As reported by the NYT, President Bush touts the virtues science,” but this really means

science that buttresses its own political agenda. But when some truly independent science comes along to threaten that agenda, the administration often ignores or minimizes it. The latest example involves the Environmental Protection Agency’s decision to reject the recommendations of experts inside and outside the government who had urged a significant tightening of federal standards regulating the amount of soot in the air.

At issue were so-called fine particles, tiny specks of soot that are less than one-thirtieth the diameter of a human hair. They penetrate deep into the lungs and circulatory system and have been implicated in tens of thousands of deaths annually from both respiratory and coronary disease. The E.P.A., obliged under the Clean Air Act to set new exposure levels every five years, tightened the daily standard. But it left unchanged the annual standard, which affects chronic exposure and which the medical community regards as more important.

In so doing, the agency rejected the recommendation of its own staff scientists and even that of its Clean Air Scientific Advisory Council, a 22-member group of outside experts that had recommended a significant tightening of the standards.

A good source for evidence of the Bush administration’s interference with science is the Union of Concerned Scientists.