Weather and tree branches cause 40 percent of U.S. power outages, which get people talking about installing underground lines — but they balk at the price. But analysts say no one's paying attention to how much it really costs to keep repairing aboveground lines, and that should matter.

Obama's remarks came just days before the Nevada caucuses in which Republican voters will state their preference for GOP presidential nominee. Nevada, of course, is a swing state. It also has among the highest foreclosure rates in the nation so the timing of Obama's announcement certainly could be interpreted as sending voters a message about where their self-interest lies.

Massage make muscles feel better after exercise by fighting inflammation, say researchers who tested the effects of massage at the cellular level.

Mitt Romney bounced back from his second place South Carolina finish and won the Florida GOP primary Tuesday. NPR's Ken Rudin discusses those results. Maine Public Broadcasting's Jay Field and the Las Vegas Review-Journal's Steve Sebelius preview the caucuses that begin Saturday in those states.

The Manhattan Institute reports that U.S. metropolitan areas are now more integrated than any time since 1910. The migration of African Americans to the South, gentrification and immigration have all contributed to the shift. Yet some argue the decline of segregation does not mean racial inequality is obsolete.

Washington Gov. Christine Gregoire announced her support of same sex marriage in January 2012, reversing her previous stance. The state Senate is expected to pass a bill Wednesday that would make Washington the seventh state, along with the District of Columbia, to legalize gay marriage.