The Federal Reserve (a non-government organization) can account for every penny. They do no have to give an 'accounting' to us, or the government, as they are the bankers, the loan originator.
It is our government that says they can't account for the money, and blames the Federal Reserve. There is even talk of 'auditing' the Federal Reserve. What a joke. There is about as much chance of that as you getting to sit in on all of the Obama meetings at the White House and Golf Course.
The Fed is NOT a non-governmental organization. It is a hybrid e.g. part governmental/part private. If you can name one other “non-governmental organiztation” which has its head appointed by the federal government, I’ll eat my words. Of course, no other “non-governmental organization” has the power to print money or write checks backed by nothing.