Egytian police used tear gas to disperse protestors in downtown Cairo once again today. The demonstrators are demanding that President Mohammed Mursi revoke what they claim is a "dictatorial" decree he announced on Thursday. The new powers were granted to "protect the revolution" and make him immune to judicial processes. The Muslim Brotherhood who supports Mursi's Freedom and Justice Party has called for counter protest in support of Egypt's leader. Protestors have remained in Tahrir Square, where tents have been erected as part of a sit in. Judges are also angry at the changes, which they claim undermines the judiciary. They threatened to strike if the presidential decree was not scrapped. Opposition parties in the country have called for more protests with one planned for Tuesday. More about: Clashes and riots, Egypt, Mohamed Mursi, Protests in Egypt