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WASHINGTON, DC - MAY 19: (L-R) Dr. Simon Levin, from Princeton University, shakes hands with President Barack Obama after receiving the National Medal of Science, during a ceremony in the East Room of the White House, May 19, 2016, in Washington, DC. Established in 1959, the National Medal of Science recognizes individuals who have made outstanding contributions to science and engineering. The National Medal of Technology and Innovation, created in 1980, recognizes those who have made contributions to America's competitiveness, quality of life, and helped strengthen the country's technological workforce. (Photo by Drew Angerer/Getty Images)

WASHINGTON, DC - MAY 19: (L-R) Dr. Simon Levin, from Princeton University, shakes hands with President Barack Obama after receiving the National Medal of Science, during a ceremony in the East Room of the White House, May 19, 2016, in Washington, DC. Established in 1959, the National Medal of Science recognizes individuals who have made outstanding contributions to science and engineering. The National Medal of Technology and Innovation, created in 1980, recognizes those who have made contributions to America's competitiveness, quality of life, and helped strengthen the country's technological workforce. (Photo by Drew Angerer/Getty Images)