Harrah’s Entertainment, Inc., through its subsidiary, Harrah’s Operating Company, Inc., operates casino entertainment facilities primarily in the United States. As of December 31, 2006, it operated 48 casinos, including 28 land-based casinos, 12 riverboat or dockside casinos, 1 combination thoroughbred racetrack and casino, 1 combination greyhound racetrack and casino, 1 harness racetrack, 4 managed casinos on Indian lands, and 1 managed casino in Canada. The company operates its casino entertainment facilities primarily under the Harrah’s, Caesars, and Horseshoe brand names. Its facilities also comprise hotel and convention space, restaurants, and non-gaming entertainment...