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They investigated ESP
The FBI once spent time and money investigating extra-sensory perception (ESP). According to the FBI Vault, ‘ESP is considered a perception of information about events beyond what may be discerned through the five physical senses or deduced from past experience or knowledge.’
Based on concerns ESP could be used as part of international spying, the FBI spent more than three years looking into the phenomenon before they concluded there was ‘no scientific support’ for their concerns.
