With the Middle East roiling, the alarming news about Pakistan’s nuclear weapons buildup has gotten far too little attention. The Times recently reported that American intelligence agencies believe Pakistan has between 95 and more than 110 deployed nuclear weapons, up from the mid-to-high 70s just two years ago.

Pakistan can’t feed its people, educate its children, or defeat insurgents without billions of dollars in foreign aid. Yet, with China’s help, it is now building a fourth nuclear reactor to produce more weapons fuel.

Even without that reactor, experts say, it has already manufactured enough fuel for 40 to 100 additional weapons. That means Pakistan  which claims to want a minimal credible deterrent  could soon possess the world’s fifth-largest arsenal, behind the United States, Russia, France and China but ahead of Britain and India. Washington and Moscow, with thousands of nuclear weapons each, still have the most weapons by far, but at least they are making serious reductions.

Washington could threaten to suspend billions of dollars of American aid if Islamabad does not restrain its nuclear appetites. But that would hugely complicate efforts in Afghanistan and could destabilize Pakistan.