Panama Papers Implicates Several World Leaders in Offshore Tax Havens

The leak is so big — 2.6 terabytes of data, the largest in history — that nearly 400 journalists in more than 80 countries spent the last year studying the 11.5 million documents from the firm Mossack Fonseca, provided to the German newspaper Süddeutsche Zeitung by an anonymous source. The collaboration, which included the International Consortium of Investigative Journalists, The Guardian, the BBC, and French outlet Le Monde, is also thought to be among the largest investigative teams in history.