Filmmaker Laura Poitras profiles William Binney, a 32-year veteran of the National Security Agency who helped design a top-secret program he says is broadly collecting Americans' personal data.
Filmmaker Laura Poitras profiles William Binney, a 32-year veteran of the National Security Agency who helped design a top-secret program he says is broadly collecting Americans' personal data. She also meets whistleblower Daniel Ellsberg, CIA expert James Bamford and internet activists.—New York Times Op-Docs