Rain Coast
Enigma and Ultra secrets are still being kept from public knowledge. Mainly financial international banking secrets. The big US corporations did a thriving business with Hitler's Germany right up to and after his declaration of war. To pay for this, the German's used gold bullion, (often stolen) and did business with Switzerland, the Vatican Bank, and the newly created Bank of International Settlements. Remember, its money that makes war possible, and to the victors go the spoils. That's why at the end of the war, the USA ended up with 20,000 tons of gold bullion.