If you don’t already think, as I do, that Snowden is a hero for revealing the astonishing level of snooping to which the US and UK governments had been subjecting innocent people all over the world — including their own citizens — perhaps Snowden will convince you (…) Snowden is also entertaining in a way is quickly becomes deeply unsettling: all the cloak-and-dagger and techno-paranoia here, usually the stuff of fictional thrillers, is authentic and affects all of us. — MaryAnn Johanson, 2017.