U.S. agencies responsible for enforcing money laundering laws rarely prosecute megabanks that break the law, and the actions authorities do take barely ripple the flood of plundered money that washes through the international financial system.

In some cases the banks kept moving illicit funds even after U.S. officials warned them they’d face criminal prosecutions if they didn’t stop doing business with mobsters, fraudsters or corrupt regimes.

JPMorgan, the largest bank based in the United States, moved money for people and companies tied to the massive looting of public funds in Malaysia, Venezuela and Ukraine, the leaked documents reveal.