► Subscribe to FT.com here: http://on.ft.com/2eZZoLIThe FT's Richard Blackden highlights the key stories in the markets on Tuesday, including caution among traders around geopolitical tensions, an easing in the price of oil and prospects for US bank earnings.► Subscribe to the Financial Times on YouTube: http://bit.ly/FTimeSubsFor more video content from the Financial Times, visit http://www.FT.com/videoTwitter https://twitter.com/ftvideoFacebook https://www.facebook.com/financialtimes