Former Foreign Minister Tariq Aziz denied any role in the bloody quelling of a 1991 Shiite uprising and said Saddam Hussein made decisions on his own, according to a video released Monday by an Iraqi tribunal. It was the fifth tape release by the Iraqi Special Tribunal this month, and the first to include audible dialogue from a defendant. A tired-looking Aziz could be heard replying to an investigating magistrate's questions.Wearing a traditional white-colored Arab robe with C1 stenciled in black on its left breast, Aziz said he had nothing to do with repressing the uprising, which left thousands of Shiites dead. "I had no effective role at that time. I was sitting inside the foreign affairs building," he said. "I did not have much authority during that time, but I heard that many top Baath party officials went to the south, but I had no contact with them at all." Aziz added that Saddam was making "decisions without discussing them with us because, as head of the Revolution Command Council, he was behaving as if his decisions carried the weight of the law."