A father-son duo of Pennsylvania treasure hunters have sued the FBI for failing to produce records chronicling a top-secret excavation the agency administered in the state nearly four years ago that may have yielded a $400million cache of Civil War-era gold.
Court documents unsealed earlier this year revealed that the bureau had in fact engaged in the previously undisclosed dig in Elk County in search of the fabled treasure, lost by the US government in 1863.
The filing attested that agents engaged in the dig came up empty-handed.
