A video has surfaced showing the Director-General of the World Trade Organization, Ngozi Okonjo-Iweala, showing off her dance moves at the wedding ceremony of her first son, Dr. Uzo Iweala. Iweala tied the knot with his partner, Lotte Elsa, on Sunday in Heidelberg, Germany. Okonjo-Iweala, in the video, could be seen dancing to an array