This directive was issued in January of this year, what is relevance of being posted today? I love all the instances where it says, we will not do this or infringe in this way... unless it is a matter of national security, which we don't have to disclose to you. So basically, do what you want as long as you write it up properly. And this part: 5.3 Review and Handling of Passcode-Protected or Encrypted Information 5.3…
Does that apply to non-citizens? If a CBP officer doesn't like you as a non-citizen, like your lack of cooperation during an interview, they could just deny your visa and your entry into the US. If you're a citizen, they can't deny your re-entry. They can delay you for however long and ruin your day and even keep your devices, but you get to go home.