President Bola Tinubu has sent special birthday wishes to Dr Ngozi Okonjo-Iweala as she turns 70 today. Tinubu described the Director General of the World Trade Organization as a worthy ambassador of Nigeria. According to Tinubu, Okonjo-Iweala is an example of grit, diligence and brilliance that Nigerians are known for. He made the remark while…