The 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. Subscribe on YouTube: bit.ly/U8Ys7n Watch more videos at: nytimes.com/video --------------------------------------------------------------- Want more from The New York Times? Twitter: twitter.com/nytvideo Facebook: www.facebook.com/nytimes Google+: plus.google.com/+nytimes/ Whether it's reporting on conflicts abroad and political divisions at home, or covering the latest style trends and scientific developments, New York Times video journalists provide a revealing and unforgettable view of the world. It's all the news that's fit to watch. On YouTube. NSA Whistle-Blower Tells All: The Program | Op-Docs | The New York Times www.youtube.com/user/TheNewYorkTimes