The Federal Reserve "holds 45% or roughly $635 billion of the total 3,396 tonnes of gold Germany have in reserve, the world's second largest hoard." Since requesting 300 tonnes, Germans have only gotten 37 thus far. Some people question if the gold even exists in the vaults of the Fed. US senators have not even been allowed to verify the existence of gold at Fort Knox. It has been over 60 years since there was an audit, despite a slew of requests, Germany being the source of some as well.
This documentary, The Secret of Oz, argues that L. Frank Baum's classic story, The Wizard of Oz, was actually about US monetary policy under the Federal Reserve system. Here is the IMDB description:
What's going on with the world's economy? Foreclosures are everywhere, unemployment is skyrocketing - and this may only be the beginning. Could it be that solutions to the world's economic problems could have been embedded in the most beloved children's story of all time, "The Wonderful Wizard of Oz"? The yellow brick road (the gold standard), the emerald city of Oz (greenback money), even Dorothy's silver slippers (changed to ruby slippers for the movie version) were powerful symbols of author L. Frank Baum's belief that the people - not the big banks -- should control the quantity of a nation's money.