> If you are a US citizen, you can't be turned away at the border or forced to unlock the device.
A warrant is not required. Federal agents can search your phone at the US border, even if you're a US citizen [1]. If they can't unlock it, they can seize it [2].
A warrant is not required. Federal agents can search your phone at the US border, even if you're a US citizen [1]. If they can't unlock it, they can seize it [2].
[1] https://www.businessinsider.com/can-us-border-agents-search-...
[2] https://www.usatoday.com/story/tech/2019/05/01/u-s-customs-c...