This is part 2 of our 3-part series on disaster communication, where we are discussing the book The Devil Never Sleeps: Learning to Live in an Age of Disaster, by Juliette Kayyem. Last time, we talked about the barriers that make comprehending and communicating about crisis challenging. This time, using cases such as Hurricane Katrina and the Deepwater Horizon explosion, we address how to overcome those barriers and get quality info to the people who need it. The first step is listening downward, or gathering info from people who are closest to disaster.