Add Yahoo as a preferred source to see more of our stories on Google. FILE - Dennis Parada, right, and his son Kem Parada stand at the site of the FBI's dig for Civil War-era gold in Sept, 2018, in ...

The FBI has long insisted its agents recovered nothing of value when they went looking for the fabled gold cache. FILE - Dennis Parada, right, and his son Kem Parada stand at the site of the FBI's dig ...

FILE - Dennis Parada, right, and his son Kem Parada stand at the site of the FBI's dig for Civil War-era gold in Sept, 2018, in Dents Run, Pennsylvania. A scientific report commissioned by the FBI ...

The FBI either lied to a federal judge about having video of its secretive 2018 dig for Civil War-era gold, or illegally destroyed the video to prevent a father-son team of treasure hunters from ...