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militants have opened fire on three U.S. Coast Guard trainers in western Yemen, wounding one.
• The officials say the shooting took place on Sunday in the Red Sea port city of Hodeida in western Yemen. The three Americans were traveling in a car near their hotel when the militants pulled up in another vehicle and sprayed them with machinegun fire.
• The officials had no word on the condition of the wounded American.
• The officials spoke Monday on condition of anonymity because they were not authorized to speak to the media.

• ___

• TEHRAN, Iran (AP) -- The head of the U.N. nuclear agency arrived Monday in Tehran on a key mission that could lead to the resumption of probes by the watchdog on whether Iran has secretly worked on an atomic weapon.
• It would also strength the Islamic Republic's negotiating hand in crucial nuclear talks with six world powers later this week in Baghdad.
• International Atomic Energy Agency chief Yukiya Amano and his two aides were quickly whisked away after landing at the Tehran airport before dawn Monday. They are to meet Iran's top nuclear negotiator, Saeed Jalili, as well as Iran's foreign minister and other officials later in the day.
• The visit -- Amano's first since becoming the IAEA chief in 2009 -- is focused on

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