Interesting story here: Mmegi Online :: US embassy refuses to name water bacteria. Apparently the US Embassy in Botswana does regular water testing there (and elsewhere around the world). And the testing identified some issues with the water recently so they sent out a notice to their employees to boil the water. But when asked to provide details about the water testing they were not completely open. This has led to a bit of tension (as suggested in this story as well as in some others such as: U.S. Embassy defends alert on tap water in Botswana and News ‹ The Patriot on Sunday. Not sure why they won’t provide details. Similar issues are why many people around the world have started testing their own water, in a crowdsourcing/citizen science kind of way (see for example Water Quality Continued: Testing for Nitrogen | Citizen Scientists).