Medical research has long been the darling of American politics, left and right, in times rich and poor. Now, however, the veneration of spending cuts and deficit reduction, from the Tea Party to the White House, is threatening the world’s greatest bankroll for medical science, the National Institutes of Health. The biomedical establishment is resounding with warnings of delayed cures for cancer, blighted scientific careers, and the rise of China. The financial threat has also inspired unusually frank talk about the way NIH spends its money, large amounts of which never get to the laboratory.