The FBI has an entire fake town for training agents. Hogan’s Alley has a bank, post office, hotel, laundromat, barber shop, pool hall, shops, and homes. The town is populated by actors who roleplay parts like bystanders, terrorists, bank robbers, and drug dealers so scenarios always change.
In the 1950s the US Government investigated a person named Robert Dorr because he kept writing to Boeing and asking for pictures of their planes. They discovered Dorr was a just teenager who loved planes, an “average and loyal American boy.” He grew up to be a diplomat, author, and TV pundit.
The FBI followed Einstein, compiling a 1,400 pages file, after branding him as a communist because he joined an anti-lynching civil rights group.
Ernest Hemingway had often complained the FBI was tracking him, but was dismissed by friends and family as paranoid. Years after his death released FBI files showed he had been on heavy surveillance, with the FBI following him and bugging his phones for nearly the final 20 years of his life.
Facebook’s facial recognition system was found to outperform similar systems used by the FBI. Where Facebook has a 98% accuracy rating in identifying faces, the FBI had a success rate of 85%.
Former FBI director, J. Edgar Hoover, liked to write on the margin of memos. One time, he read a memo with narrow margins, and replied “Watch the borders!” The next week was met with mass confusion, as multiple inquiries were sent to Border Patrol inquiring about any suspicious border activity.
The FBI suspected Frank Capra’s classic Christmas movie “It’s A Wonderful Life” was Communist propaganda when first released.
In 2013, the government of Iceland asked several FBI agents to leave after they lied to the local government and told them they were investigating terrorist hackers. It turned out they were investigating Wikileaks.
The FBI recruited a Mafia enforcer to use “illegal interrogation techniques” on KKK members to find the bodies of three missing civil rights workers. It worked.