Most scientists, on acheving high office, keep their public remarks to the bland and reassuring. Last week Nina Fedoroff, the president of the American Association for the Advancement of Science (AAAS), broke ranks in a spectacular manner.
She confessed that she was now "scared to death" by the anti-science movement that was spreading, uncontrolled, across the US and the rest of the western world.
"We are sliding back into a dark era," she said. "And there seems little we can do about it. I am profoundly depressed at just how difficult it has become merely to get a realistic conversation started on issues such as climate change or genetically modified organisms."