That article lists four incidents that took place outside the U.S., plus one instance of what turns out to be the book's author arguing that its publisher shoul

That article lists four incidents that took place outside the U.S., plus one instance of what turns out to be the book's author arguing that its publisher should voluntarily stop printing it. No U.S. government censorship. Obviously there've been cases in the U.S. that came closer to government censorship of literature than this, but in general it remains the case that it's nearly impossible to get a book banned in the U.S.