At a Glance Millions of Americans use unsafe drinking water each year, a new study has found.Water quality was poorest in parts of rural Texas, Oklahoma and Idaho during the time period studied.Small, rural, publicly owned water systems had the most frequent violations.On Saturday, Kentucky Gov. Matt Bevin announced a $3.4 million aid package to help the Martin County Water District fix its pipes. In Martin County, Kentucky, residents never know what they're going to get when they turn on...