A new film directed by Robert Greenwald looks at four whistleblowers who had their lives practically destroyed after they went to the press with evidence of government wrongdoing. They are Michael DeKort, Thomas Drake, Franz Gayl and Thomas Tamm. Whistleblowers have come under unprecedented attack by the Obama administration. Evoking the Espionage Act of 1917, the administration has pressed criminal charges against no fewer than six government employees, more than all previous presidential administrations combined. In the film, Greenwald also interviews government oversight experts and investigative journalists who warn about the chilling effect prosecutions may have on potential whistleblowers and the journalists who help them.