v3rgEz writes "By September 14, 1960, Isaac Asimov had been a professor of biochemistry at Boston University for 11 years, and his acclaimed "I, Robot" collection of short stories was on its seventh reprint. This was also the day someone not-so-subtly accused him of communist sympathies in a letter to J. Edgar Hoover. They ominously concluded that "Asimov may be quite all right. On the other hand . . . . ." The "tip off" wasn't given much credit, but it didn't matter since Asimov's science fiction writing alone was enough to warrant FBI monitoring, particularly as the FBI hunted for the mysterious ROBPROF, a communist informant embedded in American academia. MuckRock has Isaac Asimov's FBI files in full, and a write up of the more interesting bits."