Power back on after outages hit Fla. A problem with Florida's electrical grid caused a nuclear plant to automatically shut down Tuesday and intermittently cut power to up to 3 million people from Daytona Beach through the Florida Keys. Detroit had top foreclosure rate in '07 The Detroit area, hit hard by the double-whammy of unemployment and a slumping housing market, had the highest foreclosure rate in the nation last year, with several cities in California ranked close behind, an analysis of foreclosure activity in the country's largest 100 metropolitan areas shows.