The high cost of searching for Hoffa

11th August 1958: American labour leader Jimmy Hoffa (1913 - 1975), President of the Teamster's Union, testifying at a hearing into labor rackets. Rumoured to have mafia connections, Hoffa disappeared in 1975 and no body has ever been found. (Photo by Keystone/Getty Images)

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    The high cost of searching for Hoffa

The FBI is digging up a Detroit-area field searching for Jimmy Hoffa. These digs can be costly. Erin Burnett explains.