Summary

You may have heard about Transportation Security Administration (TSA) agents asking someone to turn their smartphone on while going through security at an airport and think this is something new — but it isn't. This ruling about turning on devices before boarding has been in place since 2014. Back then, the TSA implemented a new rule requiring travelers coming from overseas to turn on their electronic devices, including phones, to prove they're actually functioning. If the device does not have power, you might be subjected to additional screening.

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