U.S. says Iran must talk or face tougher sanctions
The United States urged Iran on Tuesday to sit down for talks on its nuclear programme or face tougher sanctions in winter. A U.N. Security Council resolution in December bans transfer of sensitive nuclear materials to Iran, whom the West suspects is trying to build a nuclear bomb, freezes financial assets of those linked with the nuclear programme and asks countries to pass on information about those on the list. Full Story
