In this handout image provided by Yonhap News US President Barack Obama speaks while Chinese President Hu Jintao Kazakhstan President Nursultan...
{"Image ImageDescription": "SEOUL, SOUTH KOREA - MARCH 27:  In this handout image provided by Yonhap News, U.S. President Barack Obama (2nd R) speaks while Chinese President Hu Jintao (1st L), Kazakhstan President Nursultan Nazarbayev (2nd L), South Korean President Lee Myung-bak (1st R) listen during the 2012 Seoul Nuclear Security Summit at COEX on March 27, 2012 in Seoul, South Korea. World leaders gather at Seoul to discuss on the issues to prevent possible nuclear terrorism and recurrence of meltdown of nuclear power plants and to minimize nuclear material across the world.  (Photo by Yonhap News via Getty Images)", "Image Copyright": "2012 Yonhap News"}