What brings America and Iran together?

Somali pirates. From Iran's Press TV

Iranian warships will join an international armada fighting piracy in the in waters off the coast of Somalia and the Gulf of Aden.
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In line with the international efforts Tehran will deploy two warships in the troubled region, Iran's ambassador to the UN, Mohammad Khazaei, said in a letter to the UN Secretary General Ban Ki-moon on Wednesday.
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Naval ships from the European Union, NATO and other US-led coalitions have been stationed in the region to prevent hijackings and to capture the ominous pirates.