This is a common question but is phrased in a way that leaves out another explanation which is more biblical for what we saw in 2005. I explain it here:
 
Hurricane Katrina and New Orleans - God's Judgment For Gaza?
http://www.escapeallthesethings.com/katrina-new-orleans-hurricane.htm
 
Kind Regards,
Tim McHyde
http://www.EscapeAllTheseThings.com
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