Calling Iran a danger to the U.S. and one of Israel's greatest threats, U.S. senator and presidential candidate Hillary Rodham Clinton said "no option can be taken off the table" when dealing with that nation.

"U.S. policy must be clear and unequivocal: We cannot, we should not, we must not permit Iran to build or acquire nuclear weapons," the Democrat told a crowd of Israel supporters. "In dealing with this threat ... no option can be taken off the table."

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