This year the U.S. has experienced devastating natural disasters. Outbreaks of tornadoes leveled entire neighborhoods. Flooding trapped people in their homes. Wildfires burned out of control. When people go missing during these catastrophes, it's a race against time to find them alive – or their remains. That crucial search is often carried out by specially trained dogs.FEMA has 280 certified detection dogs trained to find people in disasters. Another 80 dogs are trained to search for human remains. NPR's Scott Detrow visits a Maryland training facility where dogs, and their handlers, learn skills that could save lives. Email us at considerthis@npr.org