What a novel idea - in this country the 4th Amendment actually means something.

https://www.zdnet.com/article/us-court-rules-travellers-phones-and-laptops-cannot-be-searched-without-reasonable-suspicion/?ftag=TRE-03-10aaa6b&bhid=21455359243242794221985792139624

US Court rules travellers' phones and laptops cannot be searched arbitrarily

Any searches conducted at the US border without reasonable suspicion will now be a violation of the Fourth Amendment.

Here's the novel part of the decision (emphasis mine):

Casper noted in her decision that a person is only "reasonably suspicious" if government agents can "point to specific and articulable facts considered together with the rational inferences that can be drawn from those facts".