Napolitano says US must be vigilant after bin Laden
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Al-Qaeda and its allies will keep targeting the West despite the killing of Osama bin Laden and the United States must remain "ever vigilant," US Homeland Security Secretary Janet Napolitano said on Saturday.
Napolitano said the US government had nevertheless not formally raised alert levels in its National Terrorism Advisory System since US commandos killed the al-Qaeda leader at a compound in Pakistan nearly a week ago. (Reuters)
