If you'd read it properly, you'd notice that Australia kept a pool of debt-in-name-only turning over to serve local financial market needs. About 100 billion AUD IIRC, or ~10% of GDP at the time. The money raised through those particular bonds was never used. It just came in, sat around for a while, and went back out with a very small interest payment attached.

The US could have done the same and I understand that is what this "secret report" recommended.