The proliferation of cheap, powerful GPS jammers has airline operators, shipping firms and militaries alike scrambling for navigation alternatives.

For a few years now, and particularly since the full-scale Russian invasion of Ukraine in 2022, conventional wisdom has said that the future of warfare is swarms of cheap drones with explosives ...

This transcript was prepared by a transcription service. This version may not be in its final form and may be updated. Ryan Knutson: Our colleague Heather Somerville covers national security. And ...