In 1927, Lindbergh, an American aviator, made the first nonstop solo flight across the Atlantic in 33.5 hours, landing in Paris to a hero's welcome. He returned to the US a celebrity but moved to England in 1932 to escape the media frenzy surrounding the kidnapping and murder of his son. Returning to the US in 1940, he faced criticism for opposing US entry into WWII. Still, he flew combat missions for the US during the war. He helped invent what device that made open-heart surgery possible? Discuss