HSBC files whistleblower Hervé Falciani: 'This money comes from mafia & drug traffickers'
Hervé Falciani is a former HSBC Suisse bank employee responsible for one of the largest leaks of banking data in history. Seen here speaking in February 2014, he tells film-maker Nick Francis why he became a whistleblower. As a result of his leaks, governments around the world have recovered billions of US dollars in unpaid tax.