There have been decades of attempts to make destructive drones, going back to World War I. The technology has advanced significantly since then. Drones now range in size from tiny — as in, fitting in the palm of your hand — to so big they look like little planes.

Stacie Pettyjohn directs the defense program at the Center for a New American Security. She spoke with Marketplace’s Stephanie Hughes about how drones are being used in the war between Iran, Israel and the U.S., including Iran’s Shahed-136 drone.