About two weeks ago, part of a 12-story condominium in Surfside, Florida, collapsed. Dozens of people were killed, and dozens more are unaccounted for. Images of cranes and giant shovels, along with lines of first responders carefully removing buckets of debris, reveal the scale of the difficult task of finding those still missing. While sniffer dogs and emergency personnel working by hand are still doing most of the work, there is a variety of technology, old and new, aiding them. First, in the attempt to rescue any survivors; now, for the recovery of victims and as part of the effort to understand why the building collapsed. Marketplace’s Kimberly Adams speaks with Robin Murphy, director of the Center for Robot-Assisted Search and Rescue.