In the 1970s Uri Geller popularized the notion of extra-sensory perception, or ESP - the ability to read other people's minds, or affect change without physically touching an object. Is ESP for real? The U.S. government aimed to find out, spending decades studying psychic phenomena, and even employing psychics and mediums as "psychic spies." Erin Moriarty reports. Air Date: Mar 18, 2018