Maverick GOP Sen. Chuck Hagel said Sunday that U.S. power and influence in the world is in decline, then added, "That's good news, I think." Discussing whether the Iraq war had left the American military stretched too thin, Hagel told ABC's "This Week": "The world is now so vastly different in its distribution of not only economic power ... but also in military and diplomatic power." The Nebraska Republican then explained: "The great challenge of our time for America is our competitive position in the world and understanding this great diffusion of new power. The United States is no longer...