That’s always something to be looking out for. The money recently recovered from Iran to Iraq it was my first thought.
These pallets of money were in different denominations from various countries. It may have been a more difficult feat but should not be ruled out
NK is not the only country known for counterfeiting.
Oh, yah, I know *that* part; I just thought, with an offbeat sense of humor, how amising it would be to find out the bills were NK counterfeits, since NK and Iran were supposedly sharing nuclear and missile technology...