Dan Streufert, the founder of ADSBExchange.com, explains how you can use a inexpensive Software Defined Radio (SDR) dongle to track aircraft in your area, and the power of that data once you combine it with thousands of other feeders across the world. Can an inexpensive SDR really be used to aid a Search and Rescue Team, Assist Emergency Managers in a disaster, and even stop a dictator?
