CME Group's Duffy: Market absolutely not 'rigged'

CME Group's Duffy: Market absolutely not 'rigged'

CME Group's Duffy: Market absolutely not 'rigged'

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CME Group's Duffy: Market absolutely not 'rigged'

CME Group's Duffy: Market absolutely not 'rigged'
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President Obama briefs the press at the White House

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President Obama briefs the press at the White House