"This means that Obama is doing better among Hispanic Clinton supporters than he is among non-Hispanic white Clinton supporters, 70 percent of whom now say they have transferred their allegiance to Obama while 18 percent say they plan to vote for McCain, " Lopez said, referring to a recent Pew Research Center for the People and the Press survey.

CNN: Poll: 'Sharp reversal' for Obama with Latino voters

Dr. VIRGINIA BURKETT (Chief, Forest Ecology Branch, National Wetlands Research Center, U.S. Geological Survey): For example, where we have artificial fill, the subsidence rates are much more rapid than they are on the natural levee deposits.

NPR: Satellite Imagery Shows a Sinking New Orleans

For example, in a February 2012 survey by the Pew Research Center, 73 percent of 2, 253 adult respondents answered they would not be OK with a search engine (such as Google) keeping track of their searches and using the results to personalize future searches.

FORBES: Why We Blab Our Intimate Secrets on Facebook

October 1, 2012-The percentage of Americans who have mobile internet access has risen dramatically in the last year, a trend that is rapidly changing how people get news and the implications for how to finance it, according to a new, detailed survey of news use on mobile devices conducted by the Pew Research Center's Project for Excellence in Journalism (PEJ) in collaboration with The Economist Group.

ENGADGET: Pew Research finds 22 percent of adults in US own tablets, low-cost Android on the rise