Why Houston wasn't prepared for Harvey, and what could happen in LA

After going offshore, Tropical Storm Harvey is now poised to return to Houston. Residents near two dams have been told to evacuate, as officials release water from them. We speak with a local journalist who reported a year ago why Houston wasn’t prepared for a storm like this one. And Los Angeles has some of the same conditions, and could see catastrophic flooding in the event of a major storm. We find out how city officials are preparing.