This is pretty impressive:
Four men trapped under as much as 10 feet of bricks, mud and other debris have been rescued in Nepal thanks to a new search-and-rescue technology developed in partnership by the Department of Homeland Security’s (DHS) Science and Technology Directorate (S&T) and the National Aeronautics and Space Administration’s (NASA) Jet Propulsion Laboratory (JPL). The device called FINDER (Finding Individuals for Disaster and Emergency Response) uses microwave-radar technology to detect heartbeats of victims trapped in wreckage.
By the way, it’s still a good time to donate to help in Nepal.