One child drank apple cider at a Connecticut farm, another a glass of juice during a road trip in Oregon; later, both were rushed to emergency rooms as they struggled for their lives. A middle-aged woman became sick more than a decade ago after enjoying a salad at a banquet hosted by a California hotel; her debilitating symptoms continue to this day.

As one of his first major acts as acting director of the US Environmental Protection Agency, Andrew Wheeler signed and finalized new standards overseeing coal ash, the leftover waste created by power plants that burn coal. The new rules are a revision of 2015 regulations that were put into place by the Obama administration after two significant industrial coal ash spills.