Afghan President insists his state 's nuclear arsenal is safe , despite Taliban gains . Recent gains by the Taliban along Swat Valley 's Afghan border have raised concerns . For 2 weeks , Pakistani troops have fought Taliban in districts bordering U.S. . Swat Valley President Robert Gates said Pakistan 's government appears `` very fragile ''
Pakistani President insists his state 's nuclear arsenal is safe , despite Taliban gains . Recent gains by the Taliban along Pakistan 's Afghan border have raised concerns . For 2 weeks , Pakistani troops have fought Taliban in districts bordering Swat Valley . U.S. President Barack Obama said Pakistan 's government appears `` very fragile ''