President Barack Obama talks with the Presidential Early Career Award for Scientists and Engineers (PECASE) recipients in the East Room of the White House on April 14, 2014 (The White House/Pete Souza)

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President Barack Obama talks with the Presidential Early Career Award for Scientists and Engineers (PECASE) recipients in the East Room of the White House on April 14, 2014 (The White House/Pete Souza)
President Barack Obama talks with the Presidential Early Career Award for Scientists and Engineers (PECASE) recipients in the East Room of the White House on April 14, 2014  (The White House/Pete Souza)
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