text:  In Tennessee, Chattanooga is looking for a new police chief. It's now former chief quit with no official reason given, but several news outlets report there's a question of whether or not she actually lives there or just across the border in Georgia. Astronauts have been doing this for years on the International Space Station. Now earthlings are recycling wastewater so they can drink it. CBS's Dania Backus. When it comes to water, California is working to preserve every drop.