What's the Untold Story of Saudi Arabia's Debt Secret?

The transcript discusses the 1973 oil shock's impact on the US economy, leading to a secret financial agreement between the US and Saudi Arabia. The US needed cash due to a recession and budget deficit, resulting in a deal to keep Saudi investments in US Treasuries secret. The disclosure of this deal, after 42 years, was prompted by a Freedom of Information Act request. The transcript also explores Saudi Arabia's foreign exchange reserves and their investment in US Treasuries, comparing it to other countries like China and Japan.

Why was the information about the US Treasury's dealings disclosed after 40 years?

What changes occurred in the foreign debt holders of the US after the agreement with Saudi Arabia?