‘Dirty Wars’ Uncovers a New Battleground: The World

The title of Rick Rowley’s Dirty Wars suggests not one, but two, covert wars. This 2013 documentary has been nominated for the Best Documentary Feature Oscar, and it is based on the book by Jeremy Scahill. Adopting the role of investigator, Scahill sets out to find out more about the “dirty wars” — the secret…