Many airlines have banned hoverboards over similar fears of battery fires that sparked the Samsung recall. But hoverboards are large and easy to spot, like other items the Transportation Security Administration confiscates, such as cane swords and batarangs.

But not everyone has hoverboard or batarang—unlike a smartphone.

📬 Sign up for the Daily Brief

Our free, fast, and fun briefing on the global economy, delivered every weekday morning.