Most countries celebrated this month's slaying of Osama bin Laden as an unadulterated good, but two of them are reacting with ambivalence. China and Pakistan have found the death of the al Qaeda leader an opportune time to solidify a relationship that has a distinct anti-American odor.

Today's budding U.S.-China security rivalry will shape the region's future and the future of the world.The United States needs to transform America's Asian alliances into an integrated, net-centric system.