In this issue: COMMENT "The Common Enemy", by George Packer: The rise of ISIS. POSTSCRIPT "The Old Gang", by Tad Friend: Penny Marshall remembers Robin Williams. A REPORTER AT LARGE "The Spy Who Loved Me", by Lauren Collins: An undercover surveillance operation that went too far. ANNALS OF SCIENCE "Seeds of Doubt", by Michael Specter: An activist’s controversial crusade against genetically modified crops. THE CURRENT CINEMA "Hide and Seek", by Anthony Lane: Reviews of Frank and Love Is Strange.