► Subscribe to the Financial Times on YouTube: http://bit.ly/FTimeSubs
The credit rating agency Standard & Poor's downgraded eight of the country's largest banks a notch. Ben McLannahan, US banking editor, explains.
For more video content from the Financial Times, visit http://www.FT.com/video
Twitter https://twitter.com/ftvideo
Facebook https://www.facebook.com/financialtimes