An internationally brokered plan that carves up control of big revenue-earning sectors of the Liberian economy among the government and two rebel groups could perpetuate corruption and endanger redevelopment, a prominent opposition leader has warned. Ellen Johnson Sirleaf, the leading opposition candidate in the country's last presidential election, said proposals for international oversight of Liberian ministries and agencies could be frustrated by vested interests that became entrenched under ousted president Charles Taylor.