After nearly two full days of searching, federal investigators are hopeful the signs are pointing to the discovery of the remains of Jimmy Hoffa, the Teamster boss who disappeared almost 40 years ago near Detroit.
A cadaver dog, working with FBI investigators in an abandoned field about a half hour's drive away from where Hoffa was last seen on July 30, 1975, "reacted to some scents" at the dig site Tuesday afternoon. Investigators said they were not sure what -- if anything -- the dog was reacting to.