Iran

President Barack Obama is warning Iran that the window for dealing with its nuclear program through diplomatic channels is "shrinking."

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Israeli officials say they won't warn the U.S. if they decide to launch a pre-emptive strike against Iranian nuclear facilities, setting a tense tone ahead of high-level meetings in the coming days in Washington.

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The U.N. nuclear agency says its experts have again failed to dent Iran's refusal to cooperate in probing allegations that Tehran covertly worked on an atomic arms program.

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Iran says it is ready to resume talks with world powers over its disputed nuclear program.

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A Republican Guard commander warns Iran will target any country where an attack against it is staged.

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Military analysts say Iran probably couldn't really shut down the Strait of Hormuz, as it's threatening to do.

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A spokeswoman for the U.S. Navy's 5th fleet is warning Iran that any disruption of traffic flowing through the Strait of Hormuz, a vital oil route, "will not be tolerated."

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Iran's official news agency is quoting a top official as saying Iran will close the Strait of Hormuz, cutting off oil exports, if the West imposes sanctions on Iran's oil shipments.

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The Obama administration is expanding sanctions against Iran's shipping center as it steps up efforts to isolate the country from the international financial system.

The Treasure Department on Tuesday added 10 Iranian shipping companies and a shipping executive to a black list that freezes any assets they may have U

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Sen. John McCain is calling Iran "a threat" to the Persian Gulf, saying an assassination plot allegedly hatched in Tehran dramatizes how closely the government must be watched.

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