In this issue: COMMENT "Saudi Shakeup", by Steve Coll: A new challenge for President Obama’s nuclear negotiations with Iran. LETTER FROM NORWAY "The Inexplicable", by Karl Ove Knausgaard: Inside the mind of a mass killer. DEPT. OF JUSTICE "To Have and to Hold", by Jill Lepore: Reproduction, marriage, and the Constitution. A REPORTER AT LARGE "Where the River Runs Dry", by David Owen: The Colorado and America's water crisis. ON TELEVISION "Good Night", by Emily Nussbaum: David Letterman's last weeks. THE CURRENT CINEMA "High Gear", by Anthony Lane: A review of Mad Max: Fury Road.