
Serious threats require serious action, and there is broad nonpartisan agreement that nuclear terrorism remains one of the most daunting threats of the 21st century. That is why national leaders from more than 50 countries will meet this week in Seoul, Korea, at the second Nuclear Security Summit to address nuclear terrorism. The 2010 Nuclear Security Summit in Washington helped catalyze new commitments by states to secure loose nuclear materials, and today more than 80 percent of these commitments have been accomplished. But these measures only go so far, because there is no globally agreed-upon standard for securing nuclear material, […]