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President Obama is applauded after signing the health care overhaul during a ceremony in the White House on March 23, 2010. Then-Gov. Mitt Romney signs a Massachusetts health care overhaul at Faneuil Hall in Boston on April 12, 2006. Win McNamee/Boston Globe via Getty Images hide caption

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Some fear that with rising medical costs and an aging population, the country's nursing staff will be stretched too thin. iStockphoto.com hide caption

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