Laura Poitras’ Citizenfour, about the revelations of Edward Snowden and her involvement in them, is a vital historical document. With the bulk of the film taking place in Hong Kong, where Poitras and Glenn Greenwald interviewed Snowden for a little more than a week in the summer of 2013, Citizenfour is a careful account of spy-novel-style machinations, journalistic ethics, and … [Read more...]