Known for Deal-Making Acumen, New U.N. Leader Will Face Tough Challenges António Guterres will take over as secretary general of the United Nations at a time when the credibility of the world body is under intense scrutiny. Share: Facebook Twitter Google+ Stumble Digg Email ThisBlogThis!Share to XShare to Facebook Related Posts:Top Russian Cybercrimes Agent Arrested on Charges of TreasonFrançois Fillon, Presidential Front-Runner in France, Faces Graft InquiryA Roar, Then Cold Darkness: Avalanche Survivors Recall 3-Day OrdealSent Home for Not Wearing Heels, She Ignited a British RebellionW.H.O. Warns of Worrisome Bird Flu in ChinaA Bloody Reminder for Somalia: Chaos Is Never Far Away