alim is the second to be found to be guilty by a war crimes tribunal. >>> u.s. president barack obama has told opposition republican politicians to stop holding the economy to ransom, but he said he's willing to negotiate to end the deadlock, which has shut down parts of government for more than a week. >>> sudan says it's freed most of the prisoners detained during two weeks of fuel protests last month. at least 50 people were killed and one of the biggest challenging in the president's 24-year rule. we have the report. >> reporter: calls for freedom, peace and justice are growing in sudan, and the government is having a hard time containing public anger. >> translator: when the government saw that a protest was continuous, geographically widespread and inspiring more people to go down to the streets, it decided to counter them with all its power. they could have changed the political situation. that's why the government used excessive force. >> reporter: thousands of sudanese took to the streets. at least 50 remember killed during a crackdown by security force