Over the weekend, senator Elizabeth Warren (D-MA) excoriated health secretary Robert Kennedy Jr in a letter over his “calamitous” response to the summer’s cyclosporiasis outbreak. New cases of explosive diarrhea, triggered by a microscopic parasite that’s been found to infest pre-packaged lettuce, have only recently started slowing down — despite Kennedy Jr declaring that the situation was purportedly “under control” almost exactly a month ago. …