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The Adventures Of Superman #596 Twin Towers
DC Comics, November 2001.
This issue was shipped to stores the day after the September 11 attacks in New York City.
Due to an unfortunate coincidence the Superman comic features a scene in which Metropolis' twin LexCorp Towers have sustained damage due to events in the "Our Worlds at War" storyline.
DC quickly announced that the issue was returnable although few, if any, were actually returned.