Wildfires: Big Threats and Big Business

The US is losing the fight against wildfires, which are bigger, more numerous and more costly than ever before. We hear how firefighting has become an industry, which sometimes makes matters worse. Can we learn to live more successfully with a growing menace that's not going away? Also, Israeli Prime Minister Ehud Olmert to step down, and another big piece has broken off Canada's ice shelf, which has been shrinking for almost 100 years.

A firefighter with the Lathrop-Manteca Fire District talks on his radio as a spot fire burns through trees and brush July 10, 2008 in Concow, Photo: Justin Sullivan/Getty Images