Ignorant question for those who have had to transit the US border (it has been many years for me) - are these device searches now routine? I.e. do they automatically request access to any locked smartphone, etc?
> In FY17, ... Approximately 0.007 percent of arriving international travelers processed by CBP officers (more than 397 million) had their electronic devices searched
I would guess devices are searched at the border for parallel reconstruction (to find information they already know without disclosing details about surveillance)