President Barack Obama leaves the stage in the East Room of the White House in Washington, Tuesday, April 2, 2013, after he spoke about the BRAIN (Brain Research through Advancing Innovative Neurotechnologies) Initiative. (AP Photo/Charles Dharapak)

Associated Press
President Barack Obama leaves the stage in the East Room of the White House in Washington, Tuesday, April 2, 2013, after he spoke about the BRAIN (Brain Research through Advancing Innovative Neurotechnologies) Initiative. (AP Photo/Charles Dharapak)
President Barack Obama leaves the stage in the East Room of the White House in Washington, Tuesday, April 2, 2013, after he spoke about the BRAIN (Brain Research through Advancing Innovative Neurotechnologies) Initiative. (AP Photo/Charles Dharapak)
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