GENEVA (AP) — The new head of the World Trade Organization has thrown her support behind long-fruitless efforts to reduce overfishing as she took office on Monday. Director-General Ngozi Okonjo-Iweala, a Nigerian economist and former government minister, doled out elbow bumps as she took up the job at WTO headquarters in Geneva. She said that a top priority would be to strike a deal among member countries on fisheries subsidies that could help reduce overfishing. Discussions on the issue have gone on for 20 years at the WTO, which works to craft accords that can ensure smooth international trade.