In this issue: COMMENT "Iraq's Cost", by Hendrik Hertzberg: President Obama's address to the nation on the Iraq War. THE TALK OF THE TOWN "In the Book", by Lizzie Widdicombe: The phone directory’s slow decline. "Say Cheese", by Robert Sullivan: An edible heirloom from Lithuania. A REPORTER AT LARGE "The Mastermind", by Terry McDermott: Khalid Sheikh Mohammed and the making of 9/11. BOOKS "Power Lines", by Kelefa Sanneh: What’s behind Rhonda Byrne’s spiritual empire? THE CURRENT CINEMA "When in Europe", by David Denby: Reviews of The American, Heartbreaker and Hideaway.