Assad could stay as Cameron signals change in Syria policy

David Cameron has signalled a change in the UK government's policy on Syria, suggesting that Bashar al-Assad could stay on as president as part of a short-term, transitional government.

He was speaking ahead of a UN meeting in New York where Western leaders appear to be on the brink of accepting that President Assad has to be part of a negotiated solution.

James Robbins reports from New York.