Robert Bryce of the Manhattan Institute has clearly not thought terribly hard about the use of science in supporting policy decisions. If he had, he would not have said this (the subject is climate science, but you can substitute anything you want here):
The science is not settled, not by a long shot. Last month, scientists at CERN, the prestigious high-energy physics lab in Switzerland, reported that neutrinos might—repeat, might—travel faster than the speed of light. If serious scientists can question Einstein’s theory of relativity, then there must be room for debate about the workings and complexities of the Earth’s atmosphere.
Because if he had thought about this, he would have realized that he is arguing here that no science can ever be used in any public policy decision, because, you know, if serious scientists can question Einstein’s theory of relativity, then they can question X, where X is any science at all.