FinCEN Files: All you need to know about the documents leak

Leaked documents involving about $2tn of transactions have revealed how some of the world’s biggest banks have allowed criminals to move dirty money around the world.

They also show how Russian oligarchs have used banks to avoid sanctions that were supposed to stop them getting their money into the West.

It’s the latest in a string of leaks over the past five years that have exposed secret deals, money laundering and financial crime.

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