President Obama will enter office at a time of problems unprecedented
in number, complexity, and concern for the well-being of the nation.
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Among them is national security, both from international and domestic
threats.The nation became fixated on the threat of terrorism after 9/11 and was
jolted again by natural hazards in 2005: Hurricanes Katrina, Rita, andWilma.
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The interaction of natural hazards (such as hurricanes) and human actions (such
as engineering failures, the lack of wise land-u