News U.N. leader reproaches world of ‘turmoil’ Iran retaliated against the U.S., illustrating the U.N. chief’s concerns that geopolitical tensions worldwide are at their highest level this century. By Cary O'Reilly - January 7, 2020 U.N. Secretary General António Guterres (AN/Luxembourg Chamber of Deputies) You need to login to view this content. Please Login. Not a Member? Join Us