Many full trucks were sent by different companies containing survival supplies. Many reports said that the trucks were emptied and turned around. The officers working for the Bush administration told the drivers to never speak of it or else they would be killed. The topic was once reported on the news but became ignored and forgotten about for unknown reasons. (1)
There is a theory that HAARP was used to enhance Huricane Katrina from a normal hurricane to a type V hurricane. It would explain the unnatural growth and movement of the hurricane. Unlike most hurricanes, which travel in random paths, this one followed a straight line into the Gulf of Mexico. (2)
Resources:
1. The Synchronicity Key
2. Unsealed: Conspiracy Files