The WSJ makes a significant discovery in the e-book pricing dispute today–they have unearthed a rare photo of Macmillan ceo John Sargent wearing a necktie, along with a three-piece formal suit. (The Joe Schildhorn/Patrick McMullan picture apparently comes from the Graham Windham Bicentennial Ball in 2006.) Perhaps too late to be of any use to his publishing constituents, the Journal also has New York Senator Chuck Schumer saying, “I feel absolutely befuddled by the lawsuit. For the Antitrust Division to step in as the big protector of Amazon doesn’t seem to make any sense from an antitrust point of view. […]