FBI Investigated Isaac Asimov, Worried He Could Be Soviet Agent, According to Released Files

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Isaac Asimov was one of America's most prolific and best-loved science fiction authors, publishing more than 500 volumes in a career that spanned five decades.

But newly released papers show that, in the 1960s, he was unknowingly embroiled in intrigue more suited to a John Le Carre novel, as the FBI investigated him on suspicion of being a Soviet spy.