See my other comment. There is no way to get a scale of it since it is not audited. All we see is the public debt ballooning while infrastructure around us is decaying. Where is the money going?
Pretty boring talking point, since it's mostly audited - the various secret programs are very small in comparison to public ones.
> Where is the money going?
Giant majority goes to various social and medical programs, that only baloon from aging of society and prolonged lifespans without extending workspan.
https://upload.wikimedia.org/wikipedia/commons/e/ea/2023_US_...
So, in short - pensioners eat all the money.