Elon Musk has sparked a discussion about auditing the gold reserves at Fort Knox following a tweet suggesting a live video walkthrough. He questions whether the gold, valued at $425 billion, is genuinely intact. Fort Knox, despite being a key military gold depository, maintains a strict no-visitors policy.Elon Musk has sparked a discussion about auditing the gold reserves at Fort Knox following a tweet suggesting a live video walkthrough. He questions whether the gold, valued at $425 billion, is genuinely intact. Fort Knox, despite being a key military gold depository, maintains a strict no-visitors policy.