Fear Of Loose Nukes
The main U.S. concern is that Russia is the source. Moscow has responded to fears that terrorists could use stray nuclear material to build a “dirty bomb” by promising to tighten security around its nuclear submarines and nuclear-research centers. The United States has long encouraged such steps. But last week the White House threatened to block a $40 billion appropriations bill if extra allocations–some designed to enhance security in Russia–were added, choosing instead to focus the package on domestic economic stimulus....