It will cost $400 billion over the next 10 years to operate, maintain and modernize U.S. nuclear forces, an average of $40 billion annually, according to a recent report from the Congressional Budget Office. "Over the next two decades, essentially all of those nuclear delivery systems and weapons would have to be refurbished or replaced with new systems to continue operating," the Feb. 14 CBO report states . "Consequently, the Congress will need to make decisions about what nuclear forces...