In January of this year, we posted news of a major pollution site in Texas that was the subject of some anonymous amateur sleuths with drones, who used their UAVs to document the release of a "river of blood" (pig blood, that is) into the Trinity River as it flows through Dallas. Now, garymortimer writes, that documentation has resulted in legal action in the form of an indictment from a Dallas grand jury. "The story went viral and continues to receive hits nearly a year later. I believe this is the first environmental crime to be prosecuted on the basis of UA evidence. Authorities had to act because of the attention the story was receiving."