Apple’s new World War II series Masters of the Air opens with a close-up of two shot glasses slammed down on a bar counter with well-practiced authority by airmen in crisp uniforms. As the camera slowly pulls back, the men chat about their imminent posting “over there” and watch a couple dance to a crackly big band record. Another airman flashes a smile at a pretty blonde standing across the bar. She smiles back, flirtatiously. The focus of the scene then shifts to an Air Force squadron commander seated at a table, who lets out a sigh and then grins...