For many, the stakes and the scale of World War II are hard to fathom. It was a war fought around the world, against powerful, determined regimes in Europe and the Pacific; some 65 million people died. And as the number of people who have actual memories of the war dwindle -- as of next year, there will be fewer than 1 million living veterans -- the mission of the National World War II Museum in New Orleans becomes all the more urgent.