Obama hosts White House science fair

President Barack Obama talks with, from left, Jayla Dogan, Ashley Thomas, and Lucas Beal, all from the Paul Robeson/Malcolm X Academy in Detroit, Mich., Tuesday, Feb. 7, 2012, in the State Dining Room of the White House in Washington during the White House Science Fair. Obama hosted the second White House Science Fair celebrating the student winners of a broad range of science, technology, engineering and math (STEM) competitions from across the country.

Credit: AP Photo/Susan Walsh