What's changed since Katrina seven years ago?

Tropical Storm Debby's path is still uncertain as it hovers over the Gulf of Mexico.

Flash flood in an unexpected region of Phillippines, devastates coastal cities. 

Flooding and mudslides, not the damaged powerplant, is the greatest danger.

Many Gulf Coast residents are still without power.

Tropical storm largely spares New York City, but flooding in suburban communities is expected to cause serious problems. 

Experts aren't sure what to expect from Emily.

Photographs of a wet mess that awaited a University of Texas student after class.