A court in Uzbekistan has freed the jailed mother of a Muslim dissident after criticism by human right groups just hours before a visit by Defense Secretary Donald Rumsfeld. The 62-year-old woman, Fatima Mukadyrova, was sentenced to six years in jail this month for possession of banned Muslim pamphlets. But human rights groups say the government was trying to silence her after she accused prison authorities of torturing her son to death. Human rights groups estimate there are 6,000 religious and political prisoners in Uzbekistan.