The decision over the potential $15 billion takeover by Japan's Nippon Steel has been referred to the President over National Security concerns. Joe Biden has 15 days to decide if the deal can go through.

Also, American Airlines grounds all US flights after a technical issue.

Plus James Wickham reflects on some of the biggest business and economics stories of the past year with Susan Schmidt, portfolio manager at Exchange Capital Resources in Chicago, and Bill Blain, Strategist and Head of Alternative Assets, Shard Capital, who's on England's south coast.