Speedy LA fire clean-up hailed as 'historic', safety questioned

More than 16,000 structures burned in the Los Angeles fires, many of them homes. A lot in Pacific Palisades, Calif., has yet to be cleared.

Local and federal officials in LA say recovery from January's deadly wildfires is on pace to be the fastest in modern California history. Scientists worry that toxic debris isn't getting cleared.

(Image credit: Liz Baker)