The hits just keep on coming.

The Dept. of Homeland Security has finally coughed up its Civil Rights/Civil Liberties Impact Assessment of its suspicionless electronic device searches performed at border crossings by ICE and CBP agents. It's been a long time coming...

In its own estimation, the DHS felt it complied with the Fourth Amendment but went on to state that imposing a "reasonable suspicion" requirement for device searches would be "operationally harmful" without any "concomitant civil liberties benefit." In other words, the public wouldn't be appreciably better off if these searches didn't violate anyone's rights, but the DHS felt its agencies would be worse off if forced to respect them.,,

So, a CBP/ICE agent's hunch trumps a US citizen's rights.
DHS Says Agent 'Hunches' Trump Citizens' Rights In Searching Your Computer At The Border | Techdirt