In a government boondoggle of this magnitude, I’m sure hundreds of millions of dollars are being skimmed.
....more background....
CBRE >>>Richard Blum
https://theintercept.com/2015/05/05/watchdog-slams-company-part-owned-feinsteins-husband-abusing-huge-post-office-contract/
Lots and lots of ways to skin the government cat.
Wait till the actually start building something.
Materials and tools will start missing every night....ask the guys in charge of the Boston Big Dig boondoggle.