Aging provocateur: 'Snowden' director Oliver Stone walks us through his storied filmography

As a writer and director, Oliver Stone has never shied away from the big subjects. War. Political corruption. Greed and criminality. The hidden conspiracies they don’t teach you about in history class. 

For four decades, in movies like “Platoon,” “Wall Street,” “JFK” and his latest film, “Snowden”...