US House Speaker Nancy Pelosi’s plane to Taiwan aboard a US Air Force’s Boeing C-40C “SPAR19” became the most tracked flight in the world. FlightRadar24, a flight tracking website based in Sweden that uses aircraft ADS-B broadcast signals sent to ground-based receivers, as well as satellite data and several other sources to track thousands of flights live around the… US House Speaker Nancy Pelosi’s plane to Taiwan aboard a US Air Force’s Boeing C-40C “SPAR19” became the most tracked flight in the world. FlightRadar24, a flight tracking website based in Sweden that uses aircraft ADS-B broadcast signals sent to ground-based receivers, as well as satellite data and several other sources to track thousands of flights live around the…