“Franklin Miller, a veteran nuclear strategist now at the Scowcroft Group, points out that Mr Obama would never have persuaded the Senate to ratify the New START treaty in 2010 had he not pledged to renew America’s nuclear weapons on land, sea and in the air. That agreement allows for what is known as the ‘bomber discount’, which counts an aircraft carrying several bombs as a single warhead. The LRS-B (the upcoming Long-Range Strike Bomber) will be able to carry internally a payload of cruise missiles, the new B61-12 bombs or a smaller stand-off missile with a conventional warhead. It is improbable that any president would forgo that option while Russia retains it.”