An explosion outside the U.S. embassy in Ankara kills one Turkish guard and wounds two people. U.S. intelligence officials say Al Qaeda’s affiliate in north Africa is seeking to carry out attacks on western targets in the region. Niger, which borders Mali and Algeria, agreed to host American troops and surveillance drones to keep tabs on Islamic militants. An israeli airstrike on Syrian territory drew condemnation from Iran, Hezbollah and Russia. And opponents of Egyptian President Mohamed Morsi demand his overthrow after the deadliest week of his seven months in office. A panel of journalists joins Diane to discuss the week's top international news stories.