Keywords: washington dc washingtondc nuclear security summit nuclearsecuritysummit 2016 family photo familyphoto class photo classphoto group photo groupphoto heads of delegation headsofdelegation Heads of delegation for 2016 Nuclear Security Summit gather for family photo in Washington, D.C. on April 1, 2016 [Ben Solomon/U.S. Department of State] More photos at www.flickr.com/photos/141427878@N08/ Heads of delegation for 2016 Nuclear Security Summit gather for family photo in Washington, D.C. on April 1, 2016 [Ben Solomon/U.S. Department of State] More photos at www.flickr.com/photos/141427878@N08/ |