Seven (7) times more people’s livelihoods are devastated by natural disasters than by war worldwide, at the moment.So, despite the Iraq war, Darfur, etc. -- natural disasters (like Katrina, Tsunami's, earthquakes, etc.) are causing seven times more grief to ordinary people worldwide than war.
So the threat from a hurricanes, floods, etc has caused more damage to people's lives than 9 11. Think about it.
So while terrorism is a problem we need to focus on natural disaster preparation (and relief) even more.