Perhaps the most alarming slice of twentieth-century U.S. history is virtually unknown to the general public, including most scholars of American history. One hopes that a recent BBC documentary titled The Plot Against America and an article of the same name by Columbia Law School professor and longtime human rights activist Scott Horton, on the website of Harper’s magazine, will sound an alert.It's worth noting that Grandpappy Bush was a central figure in this episode, perhaps not surprisingly considering his links with the Nazis.