Brad Meltzer's Decoded ("Ft. Knox") Episode 11

Brad's investigators look at one of the most secure places on Earth – the Bullion Depository at Fort Knox, where the U.S. Government reportedly keeps 147.3 million ounces (over 4,600 tons) of gold. Because there has not been a public audit of the gold since 1974 however, the team looks into rumors that the vault is now empty, and if true, it could devastate the nation's economy.