. . . . "\"What Really Happened on 9-11?\" is a song sung by Eric Cartman in the Season Ten episode \"Mystery of the Urinal Deuce\"."@en . "\"Mystery of the Urinal Deuce\""@en . . "What Really Happened on 9-11?"@en . . . "\"What Really Happened on 9-11?\" is a song sung by Eric Cartman in the Season Ten episode \"Mystery of the Urinal Deuce\"."@en . .