President Obama talks to two of his advisors, Laura Holgate (center) and Corey Hinderstein, at the Nuclear Security Summit Plenary 1. C

President Obama talks to two of his advisors, Laura Holgate (center) and Corey Hinderstein, at the Nuclear Security Summit Plenary 1. C

President Obama talks to two of his advisors, Laura Holgate (center) and Corey Hinderstein, at the Nuclear Security Summit Plenary 1. C

President Obama talks to two of his advisors, Laura Holgate (center) and Corey Hinderstein, at the Nuclear Security Summit Plenary 1.

IMAGE: Nuclear Security Summit 2016
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