LATE LAST YEAR, 16 U.S. congressmen voiced their approval for Venezuelan president Hugo Chavez. Representatives Barney Frank, John Conyers, Chaka Fattah, Jan Schakowsky, Jose Serrano, and others complained in a letter to President Bush that the United States was not adequately protecting Chavez against a groundswell of internal opposition to his increasingly authoritarian rule--an upsurge that might lead to his ouster.