The logo of Barclays bank is seen at its office in the Canary Wharf business district of London April 1, 2013. REUTERS/Chris Helgren

 
The logo of Barclays bank is seen at its office in the Canary Wharf business district of London April 1, 2013. REUTERS/Chris Helgren
The logo of Barclays bank is seen at its office in the Canary Wharf business district of London April 1, 2013. REUTERS/Chris Helgren