* Not satisfied with 50 mpg? A group of Bay Area engineers is trying to launch a green car revolution at 100 mpg by souping up Toyota's Prius. The holy grail of their "plug-in hybrids:" less smog, less global warming and a cure for America's oil addiction. * Admiral Chester Nimitz was nearly killed when his seaplane hit a floating telephone pole 65 years ago. Ever since, a group of Sausalito sailors has toiled as San Francisco Bay's unheralded trash collectors - removing tons of debris every month, from floating concrete to dead bodies. * Each year hundreds of anonymous migrants die crossing the U.S.-Mexico border, but forensic anthropology student Chelsey Juarez has developed a technique to identify them using teeth samples - and possibly return their remains to loved ones.