The Pentagon does know where there money goes but they are never going to tell a committee of idiots who cannot keep a damn thing secret. If you can’t trust even the President to not run his mouth or expose classified satellite capabilities to our enemies then why would they ever tell anyone in politics where that money is going? I want a transparent govt as much as the next person but it isn’t going to happen.
They’re legally required to tell those things, and democracy is not built on secrecy.
This is the major interest point for me in UAP investigations - it looks exceedingly likely that the Pentagon is embezzling some of those funds through “pet projects” that are all legacy, ultra-secret, unaccountable, and need to produce nothing.