Major developments

Soldiers toting M-16s strengthen their grip on New Orleans, urging more residents to evacuate and capturing a person suspected of firing on workers trying to restore cell phone towers.

Congress will consider an emergency aid package that would spend US$51.8 billion on housing, clothing and other recovery needs for storm victims.

Vice President Dick Cheney heads to the Gulf Coast to talk to local officials, meet with emergency first responders and tour disaster sites.

Health officials fear bacteria from floodwaters has migrated to crowded shelters outside Louisiana. Four deaths in Texas and Mississippi have been attributed to wound infections.

Federal officials prepare 25,000 body bags as the floodwaters continue to slowly recede in New Orleans. Officials say they want to be prepared for the worst.

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The U.S. Postal Office delivers about 15,000 Social Security checks to collection points in areas affected by Katrina.

A convoy of trucks carrying supplies from Mexico prepares to cross the border into the United States.

The Energy Department says natural gas prices could increase as much as 71 percent in parts of the United States this fall, raising the prospect of higher home heating costs this winter.