From Charles B. : 
"And here's a scary thought: While reading an Amazon.com review of the book, Vice: Dick Cheney and the Hijacking of the American Presidency, by Lou Dubose and Jake Bernstein, I discovered that Cheney's Secret Service code name is "Edgar" -- referring to Edgar Bergen, the famous ventrioquist who mastered and manipulated his idiotic yokel dummy, Mortimer Snerd (George W. Bush). If that's true, this says it all."