Anyone stuck in a knotted snarl of interstate clovers knows that GPS is both important and imperfect. But if GPS fails while you’re bringing a 737 in for a landing it could be catastrophic.

Why is “GPS spoofing” on the rise—and how can airlines protect their flights against being caught up in conflict zones.

Guest: Drew FitzGerald, telecom reporter for the Wall Street Journal.

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Podcast production by Evan Campbell, Patrick Fort, and Cheyna Roth.

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What Next: TBD | When Your Flight’s GPS Gets Spoofed