Keywords: washington dc washingtondc state department statedepartment nss nuclear security nuclearsecurity nuclear security summit nuclearsecuritysummit 2016 U.S. Secretary of State John Kerry and Nigerian President Muhammadu Buhari pose for a photo before their bilateral meeting on the sidelines of the 2016 Nuclear Security Summit in Washington, D.C., on March 31, 2016. [State Department photo/ Public Domain]. More photos at www.flickr.com/photos/141427878@N08/ U.S. Secretary of State John Kerry and Nigerian President Muhammadu Buhari pose for a photo before their bilateral meeting on the sidelines of the 2016 Nuclear Security Summit in Washington, D.C., on March 31, 2016. [State Department photo/ Public Domain]. More photos at www.flickr.com/photos/141427878@N08/ |