► Subscribe to the Financial Times on YouTube: http://bit.ly/FTimeSubs<br /><br />A surprising announcement from the European Central Bank gave way to a startling and worrying market reaction. John Authers analyses another strong recovery for US stocks.<br /><br />For more video content from the Financial Times, visit http://www.FT.com/video<br /><br />Twitter https://twitter.com/ftvideo<br />Facebook https://www.facebook.com/financialtimes