Weren't those bills in the duffel bag some kind of weird denomination?
I'm thinking that whoever got away with all that money, they were probably in for a tough time trying to dispose of the money, or convert it into a more liquid asset, since it appeared that all the bills were some sort of weird non-typical denomination (not your standard 20's, 50's or even 100-dollar bills). It would have been difficult for Cusack to take that bag to a bank and deposit all that cash, and certainly would have been nearly impossible for him to spend it at the local 7-11 or Safeway or WalMart store, no? Serious questions and investigations would have been initiated. Bank tellers and cashiers are on alert to notify authorities whenever someone is negotiating large bills or large sums of money that look, well, not quite cricket.
Just something to think about the next time you make off with somebody else's money to the tune of 2 million dollars. lol