Overview of Recall rodeo: A food safety update + Why cars are catching fire
This Science Friday episode covers two consumer-safety topics: why food recalls can feel especially frequent even when the overall data is fairly steady, and why modern cars are increasingly being recalled for fire risks even while parked and turned off. The first segment examines whether recent FDA/CDC cuts and delayed regulations are weakening food safety oversight; the second explains how always-on vehicle electronics can make parked cars vulnerable to electrical faults and fires.
Food Safety Update: Are Recalls Really Up?
Brian Ronholm of Consumer Reports says the surge in attention to recalls is real, but the underlying recall/outbreak numbers are generally flat over time with normal ups and downs.
Key points
- High-profile recalls create the impression of a bigger systemic crisis, especially when they involve familiar brands.
- This year’s cyclospora outbreak is an exception because the illness count reached unusually high levels.
- Many recalls are for recurring issues:
- bacterial contamination such as E. coli and salmonella
- foreign material like glass or metal shards
- Company recall announcements should be read skeptically:
- “food safety is our top priority” is standard PR language
- “out of an abundance of caution” often follows negotiations with regulators
- companies may resist broad recalls until pressured by agencies
Regulatory concerns
Ronholm argues that food safety enforcement has been weakened by:
- chronic underfunding of the FDA and CDC
- reduced inspection and lab capacity
- delayed implementation of the traceability rule from the 2011 Food Safety Modernization Act
Why traceability matters
- Better traceability would let regulators identify the source of contaminated food faster.
- Faster tracing means quicker recalls and fewer people exposed.
- The rule is now delayed until July 2028, 17 years after the original law.
Bigger takeaway
Ronholm argues that the system still does a decent job of detecting problems, but it should focus more on preventing them through funding, inspections, testing, surveillance, and traceability.
Why Cars Are Catching Fire While Parked
Car journalist Jason Torchinski explains that while car fires are not new, modern vehicles create new fire risks because they are rarely truly “off.”
Core explanation
- Older cars were more mechanically simple and mostly inert when turned off.
- Modern cars remain electrically active even when parked:
- keyless entry systems
- security systems
- cameras and sensors
- convenience electronics
- That means current can still flow through wiring, creating the possibility of:
- shorts
- sparks
- overheating near fuel or other flammable materials
Why this is happening more now
- Cars are packed with more electronics than before.
- Tight packaging leaves less room between components.
- Hybrids are especially cramped because they combine multiple drivetrains and systems.
- Some recalls, like those involving Hyundai and Kia, have involved brake fluid leaks affecting electrical components.
EV fire risk
Torchinski notes EV fires are a related but distinct issue:
- battery damage or shorting can trigger thermal runaway
- battery fires are extremely difficult to extinguish
- they can reignite after appearing to be out
His broader critique
Torchinski argues that the industry has added too much complexity:
- too many screens
- too many systems
- too much reliance on constant electrical activity
- fewer simple, mechanically reliable designs
He says there was a sweet spot in the 1990s to early 2000s when cars had improved reliability without becoming overloaded with always-on tech.
Main Takeaways
- Food recalls may feel more frequent than they are because high-profile cases dominate attention.
- Food safety oversight depends on prevention, traceability, inspections, and lab capacity—areas that have been strained by chronic underfunding.
- Modern cars are vulnerable to parked fires because they are never fully electrically “off.”
- More electronics, denser packaging, and battery systems increase the risk of fire in both gas cars and EVs.
- Both segments point to the same theme: modern systems are more complex, and complexity can create hidden safety risks.