U.S. Secretary of State John Kerry speaks during a news conference at the Foreign and Commonwealth Office in London October 22, 2013. Plans for talks to end the fighting in Syria were in jeopardy on Tuesday after the opposition refused to attend unless President Bashar al-Assad is forced from power and a furious Saudi Arabia made clear it would no longer co-operate with the United States over the civil war. REUTERS/Suzanne Plunkett (BRITAIN – Tags: POLITICS CONFLICT)