FILE - In this Aug. 21, 1969 file photo, Teamsters Union leader James Hoffa is shown in Chattanooga, Tenn. The FBI has seen enough merit in a reputed Mafia captain's tip to once again break out the ... more 
FILE - In this Aug. 21, 1969 file photo, Teamsters Union leader James Hoffa is shown in Chattanooga, Tenn. The FBI has seen enough merit in a reputed Mafia captain's tip to once again break out the digging equipment to search for the remains of Hoffa, last seen alive before a lunch meeting with two mobsters nearly 40 years ago. Tony Zerilli told his lawyer that Hoffa was buried beneath a concrete slab in a barn in a field in suburban Detroit in 1975. (AP Photo/File) less 
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Associated Press | Photo By File
Tue, Jun 18, 2013 12:08 PM EDT