Undated file photo shows the next director-general of the World Trade Organization (WTO) Ngozi Okonjo-Iweala. Members of the World Trade Organization (WTO) on Feb. 15 agreed by consensus to appoint Ngozi Okonjo-Iweala, a former finance minister of Nigeria, as the next director-general, said the WTO in a press release. (WTO/Handout via Xinhua)
