Russia, China build case at U.N. to protect Iran from U.S. sanctions threat

Russia and China have started making the case at the United Nations against Washington's claim that it can trigger a return of all sanctions on Iran at the Security Council, with Moscow invoking a 50-year-old international legal opinion to argue against the move.Russian Foreign Minister Sergey Lavrov and the Chinese government's top diplomat, Wang Yi, both wrote to the 15-member council and U.N. chief Antonio Guterres as the United States threatens to spark a so-called sanctions snapback under t