LOS ANGELES (Reuters) - Superstar Mel Gibson goes on a drunken anti-Semitic tirade and Hollywood's powerful Jewish community finds itself under attack for not speaking up strongly enough in protest. In the days since Gibson's arrest on suspicion of drunk driving after a wild ride down a Malibu highway, few of the leading Jewish figures in the film industry have publicly commented on Gibson's barrage of anti-Semitic comments. The actor was formally charged with drunk driving on Wednesday, six days after his arrest and subsequent rant to a police officer about Jews causing all the wars. On Tuesday, Gibson issued...