Patrick Cronin appears on WIOD Radio to discuss why spy balloons are in some ways more difficult to track than more modern surveillance methods.

Caption
This photograph shows a Dassault Rafale aircraft parked on the tarmac of the French Air and Space Force Luxeuil-Saint-Sauveur Airbase in Saint-Sauveur, France, on March 18, 2025. (Ludovic Marin/AFP via Getty Images)