WASHINGTON, DC - MAY 27: U.S. President Barack Obama looks at the "flood-proof" bridge design project from Avery Dodson, Natalie Hurley, Miriam Schaffer, Claire Winton and Lucy Claire Sharp from Tusla. Oklahoma, winners of the Junior FIRST Lego League Challenge, during the 2014 White House Science Fair at the White House May 27, 2014 in Washington DC. The fair celebrates the winners of STEM (science, technology, engineering and math) competitions across the country. (Photo by Aude Guerrucci-Pool/Getty Images)
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