The source of the NSA leak, Edward Snowden, now joins the list of the country's most famous whistleblowers. Here are the top five, from Politico:
- 5. Karen Silkwood, who raised concerns about working conditions at a nuclear facility
- 4. Frank Serpico, the New York City cop who tried to weed out police corruption
- 3. Linda Tripp, who played a key role in the Monica Lewinsky scandal and the impeachment proceedings against President Bill Clinton
- 2. Daniel Ellsberg, who leaked the Pentagon Papers back in 1971
- 1. Mark Felt, otherwise known as "Deep Throat." Outed in 2005, his information ultimately led to the end of Richard Nixon's presidency