CAIRO ? As violent anti-government protests enter their fourth week, Sudan appears headed toward political paralysis, with drawn-out unrest across much of the country and a fractured opposition without a clear idea of what to do if the country's leader of 29 years loses power. Even for a country that looks unwieldy when it's not tearing itself apart, President Omar al-Bashir's years at the helm have turned Sudan into a cautionary tale ? from genocide and bloody rebellions to ethnic cleansing, starvation and rampant corruption. But Sudan has been hard to rule way before al-Bashir seized power in a 1989 military coup. Protest leaders say a whole new start is needed if the country is to stand...