From Thank You FedEx, For Standing Up to the Feds:
With more than 4,000 crimes in federal statutes and more than 300,000 more crimes specified in various federal regulations, every complex commercial enterprise is inevitably vulnerable to federal prosecution-and thus, given federal prosecutors' leverage, to oversight through a deferred- or non-prosecution agreement. What that means is that the Department of Justice has sweeping regulatory authority, which according to the D.C. Circuit's April decision in United States v. Fokker Services, federal judges have next to no power to review.
Nobody knows all of the laws and regs. Remember, Three Felonies A Day