U.S. Secretary of State John Kerry, speaking in Vienna, says that "very real gaps" remain in Iran nuclear talks and he has made 'crystal clear' to the Iranian regime that the current 19,000 centrifuges are too many.
Mr. Kerry said he is returning to Washington to consult with President Barack Obama and Congress about the prospects for a long-term deal.
He says there have been "tough negotiations" but he still believes there is a path forward.
Source: Wire news reports
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