President Obama warns against threat of nuclear terrorism

http://www.politico.com/news/stories/0410/35727.html

"I believe strongly that the problems of the 21st century cannot be solved by any one nation acting in isolation — they must be solved by all of us coming together," Obama declared.

Obama called for concrete actions, and not just rhetoric, from the countries at the summit. Those nations attending were required to make a significant, specific promise to advance the meeting's goal. White House officials are already hailing Chile's return of nuclear materials to the U.S., Canada's promise to return similar materials and Ukraine's pledge to get rid of all highly enriched uranium on its soil.