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Customers use automated teller machines (ATM) outside a bank branch, operated by HSBC Holdings Plc, in London, U.K., on Monday, Feb. 9, 2015. The private-banking unit of HSBC made significant profits for years handling secret accounts for an array of criminals, from drug cartels and arms dealers to tax evaders and fugitive diamond merchants, according to a report released Sunday by an international news organization. Photographer: Simon Dawson/Bloomberg via Getty Images

Customers use automated teller machines (ATM) outside a bank branch, operated by HSBC Holdings Plc, in London, U.K., on Monday, Feb. 9, 2015. The private-banking unit of HSBC made significant profits for years handling secret accounts for an array of criminals, from drug cartels and arms dealers to tax evaders and fugitive diamond merchants, according to a report released Sunday by an international news organization. Photographer: Simon Dawson/Bloomberg via Getty Images