Deutsche Bank is in serious trouble, with some hedge funds pulling business and the US Department of Justice seeking $14bn to settle its probe on mortgage securities. Why are people so worried about the bank’s fate? FT's Martin Arnold explains in five charts.► 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