The files (available in two parts) insinuate a communist connection between Marilyn Monroe, which was the center of attention in the files. Her close relationships with government officials like her ongoing affair with President John F. Kennedy and his brother Bobby Kennedy put her in a very pivotal position. Only months before she died she was in Mexico rubbing with shoulders with the likes of Frederick Vanderbilt Field, the black sheep of the Vanderbilt family who was a communist probably before he could walk. Though the transcripts of the files are out, there really isn’t any new news concerning Ms. Monroe. It’s already been known for years the FBI was following her every move, especially towards the end of her tragic life (cut short at age 36 back on August 5th, 1962) because of contrasting ties with both the White House and blacklisted actors and directors.
Monroe’s file begins in 1955 and mostly focuses on her travels and associations, searching for signs of leftist views and possible ties to communism. One entry, which previously had been almost completely redacted, concerned intelligence that Monroe and other entertainers sought visas to visit Russia that year. The file continues up until the months before her death, and also includes several news stories and references to Norman Mailer’s biography of the actress, which focused on questions about whether Monroe was killed by the government. SOURCE