Hurricane Katrina smashed into the Gulf Coast Monday, bringing damaging winds and torrential rain. An emergency official in Mississippi and a reporter in New Orleans discuss the damage in two of the hardest hit areas.

Scientists from the Center for Severe Weather Research track storms in western Kansas' "Tornado Alley" in an effort to improve their understanding of the process of tornado formation so that better predictions may someday be made.

Hurricane Dennis struck Pensacola, Fla. over the weekend, 10 months after the area was devastated by Hurricane Ivan. A discussion about the damage and the emotional and psychological toll the storms are having on the community.

Scientists from the Center for Severe Weather Research track storms in western Kansas' "Tornado Alley" in an effort to improve their understanding of the process of tornado formation so that better predictions may someday be made.

The U.N.'s top official for development aid said, despite the successful initial response to last year's tsunami disaster, recent attempts to return people to work and their homes has been slow. Jonathan Silvers looks at the rebuilding efforts in the…