The U.S. military, which for a generation has wielded the world's preeminent air power capability, needs to prepare to trade in expectations for air dominance -- control of the entire battlespace at all times -- for something new: "on-demand air superiority," a shift due to increasing technological prowess of potential adversaries that will render U.S. air dominance unaffordable. That is a key finding of a Defense Science Board Task Force on Air Dominance that focused on science, technologies, capabilities and...