Given the potentially dire economic consequences of a flood of counterfeit bills, the Bureau of Engraving and Printing--the arm of the Treasury Department that oversees U.S. currency--sought insights into current and emerging technology from a group of experts in areas including materials science, image analysis and printing technology. That group, under the auspices of the National Research Council, earlier this year delivered its report, "A Path to the Next Generation of U.S. Banknotes."

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