Two years ago, we published the Panama Papers. The internal data from the dubious Panamanian law firm Mossack Fonseca revealed how dictators, drug cartels, mafia clans, fraudsters, weapons dealers and regimes like North Korea and Iran use offshore shell companies to hide their shady business transactions. The publication of investigations based on the papers brought down prime ministers in Iceland and Pakistan, triggered mass demonstrations and launched criminal trials around the world. Laws have changed and oversight committees have been adopted in numerous countries. The Panama Papers have helped tax authorities recover several hundred million dollars in unpaid taxes and penalties.
All this began with just one individual and his courage: A whistle-blower who called himself (or herself, we still don’t know) “John Doe.” He anonymously leaked 2.6 terabytes of data to us. (We try not to think about what the drug dealers, dictators and organized crime figures would do to