Science Friday Science Friday

Recall rodeo: A food safety update + Why cars are catching fire

Sep 8, 2026 · 18m

Summary

Brian Ronholm explains that while food recalls seem frequent, data shows consistent trends, though recent CDC and FDA budget cuts have weakened surveillance and delayed traceability rules. He argues the system is less stable than 30 years ago due to chronic underfunding and industry resistance to prevention standards. In a separate segment, Jason Torchinsky discusses why modern cars spontaneously catch fire, attributing it to persistent electrical systems and complex electronics that remain active even when the vehicle is off.

Topics discussed

Sponsors: Brooklyn Solarworks, Audible, Progressive Intro: The 'Food Recall Summer' and guest introduction Are food recalls actually increasing this year? Why diverse contaminants and high-profile brands skew perception Behind the scenes: Company press releases vs. regulatory reality Impact of federal budget cuts on FDA and CDC surveillance The delayed implementation of the food traceability rule Prevention vs. reaction and industry distrust in produce Funding needs and chronic underfunding of food agencies Is food safer now than it was 30 years ago? Sponsors: Odu, Mohonk Mountain House, Science Delivers Intro: Cars spontaneously catching fire while parked Historical context: Carburetors vs. modern electrical systems Why modern cars are never truly 'off' electrically Specific causes: Brake fluid leaks and tight packaging EV fire risks: Thermal runaway and difficulty extinguishing The 'sweet spot' of 90s-2000s car technology Outro and listener review
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