Full coverage: Xi Visits Czech Republic, Attends Nuclear Security Summit
US officials have welcomed the ongoing cooperation with China on nuclear security and non-proliferation.
"We have greatly reduced the possibility that terrorists can get nuclear explosive material. But the threat is not yet done to zero. So we have to keep working on it," said Thomas M. Countryman, Asst. Sec. of Bureau of Int'l Security & Non-Proliferation.
"We expect that a kind of agreement we have with our Chinese friends, both at the government level and especially the civilian level can increase and improve both safety and security," said Dan Lipman, Vice President of Nuclear Energy Institute.
"Both nations are committed to the goal of ensuring that highly-enriched uranium and other nuclear materials are secured," said Myles Gaggins, Asst. Press Sec. of White House National Security Council.