FLINT, Mich. (AP) — A woman who played a key role in exposing the lead-tainted water disaster in Flint, Mich., is among seven people from around the world to be awarded a Goldman Environmental Prize for grassroots environmental activism. LeeAnne Walters was repeatedly rebuffed by Gov. Rick Snyder’s administration, even as she confronted regulators with bottles of brown water that came from her kitchen tap.