Delta State Governor, Rt. Hon. Sheriff Oborevwori, has congratulated Nigerians on the country’s 64th Independence anniversary, but charged them to work in unity to surmount the economic and security challenges facing the country. In a statement in Asaba by his Chief Press Secretary, Sir Festus Ahon, Governor Oborevwori admonished Nigerians to work in unison, irrespective …