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Pakistan is set to mediate talks between the United States and Iran. But across the Middle East, there is little optimism about what comes next, even if a U.S.-Iran deal comes together.
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UK government officials say they are not entirely abandoning the agreement but have run out of time.
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Even after a cease-fire, Iran is keeping a chokehold on traffic, forcing countries to cut deals that could put them at odds with the U.S.
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