The first female finance minister of Nigeria, Ngozi Okonjo Iweala has added yet another feather to her cap. Yesterday, Okonjo-Iweala was appointed as an independent director for the top social media platform, Twitter. Co-founder and CEO of Twitter, Jack Dorsey, announced her appointment on Twitter. Thanks for the privilege, Jack. //t.co/PPlL2xggZV — Ngozi Okonjo-Iweala (@NOIweala) July 19, 2018 Acknowledging the appointment,...