INTRO: "Good morning from the Cheat Sheet team at The Daily Beast. It’s Thursday, August 22nd. And here are the five most important stories we’re watching right now. Let's get started." [beat] First up this morning, from Geneva: A new assessment report by the World Health Organization says there is no evidence that microplastics found in most drinking water are harmful to humans. The WHO did warn against complacency, though, saying that more study was needed on the matter.