In pics: special "security officers" of UN

Officer Roren Aitcheson and his Labrador Hector of the United Nations K-9 (Canine) Unit are pictured at the UN headquarters in New York, Oct. 13, 2017. The United Nations is the diplomatic center of the world and its headquarters in New York is guarded by a group of Labradors and their handlers called K-9 (Canine) Unit. The black Labrador named Hector is one of the special "security officers". There are 10 officers and each of them has a Labrador in the K-9 (Canine) Unit. They work together to ensure the safety of the United Nations. (Xinhua/Li Muzi)