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US Secretary of State John Kerry leaves his hotel on the way to mass at the St. Stephen's Cathedral in Vienna, Austria July 12, 2015 where the Iran nuclear talks meetings are being held. World powers raced to clinch a landmark deal to prevent Iran acquiring a nuclear bomb, with a source close to the marathon talks saying an agreement was '98-percent' completed. AFP PHOTO / POOL / CARLOS BARRIA (Photo credit should read CARLOS BARRIA/AFP/Getty Images)
US Secretary of State John Kerry leaves his hotel on the way to mass at the St. Stephen's Cathedral in Vienna, Austria July 12, 2015 where the Iran nuclear talks meetings are being held. World powers raced to clinch a landmark deal to prevent Iran acquiring a nuclear bomb, with a source close to the marathon talks saying an agreement was '98-percent' completed. AFP PHOTO / POOL / CARLOS BARRIA (Photo credit should read CARLOS BARRIA/AFP/Getty Images)

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    Iran nuke talks hit snag; deal unlikely today

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Iran nuke talks hit snag; deal unlikely today

Just hours after the U.S. and other world powers appeared close to a nuclear deal with Iran, it now looks like there will be no deal announcement today.

Iran nuke talks hit snag; deal unlikely today

Just hours after the U.S. and other world powers appeared close to a nuclear deal with Iran, it now looks like there will be no deal announcement today.