Former Trader Tom Hayes As Jury Deliberation Continues In Libor Trial [Getty Images]

Thomas 'Tom' Hayes, 35, a former trader at banks including UBS Group AG and Citigroup Inc., arrives for his trial at Southwark Crown Court in London, U.K., on Friday, July, 31, 2015. Hayes is charged with eight counts of conspiracy to manipulate the London interbank offered rate, the benchmark used to value more than $350 trillion of loans and securities. Photographer Matthew Lloyd/Bloomberg via Getty Images

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