Grunsfeld, Associate Administrator for Science Mission Directorate, poses with Ahmed
| By Reuters
John M. Grunsfeld (L), Associate Administrator for the Science Mission Directorate, poses for a selfie with Ahmed Mohamed, 14, the Texas teenager who was arrested after bringing a homemade electronic clock to school, during the second White House Astronomy Night on the South Lawn of the White House in Washington October 19, 2015. REUTERS/Joshua Roberts
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