LeeAnne Walters was one of the activists who brought Flint's brown, lead-laden water to the world's attention, thrusting plastic bottles of dingy liquid into camera lenses and the national consciousness. Four years later, you might think things have improved in the Michigan city. But Walters is still bathing her kids in bottled water, which she heats on the stove in four separate pots and a plastic bowl in the microwave. I know as far as the lead in the water that's OK, but it's the lack of trust that was never rebuilt," said Walters. It is four years since the ... public health crisis. In the aftermath, Flint received presidential visits, millions of dollars in donations and government aid. It is the subject of scientific studies. Walters has now won the Goldman environmental prize for activism. But, despite all this attention, regular people feel that little has changed since the crisis. Debra Furr-Holden, a researcher at Michigan State University ... said even though federal agencies flung themselves at the city, "the impact of their presence is not known or real for the residents". For the roughly 100,000 people who live here, the damage is done. The list of physical ailments is long. Flint resident Keri Webber's ... daughters, variously, have kidney damage, fatty liver, anemia and lead-laden bones. Other Flint residents have had recurring skin rashes. There were so many miscarriages in Flint that University of Kansas economists found the fertility rate dropped by 12%, and fetal death shot up by 58%. The mental scars are as tangible as the physical.