You're correct. They're assuming that they might be served with a subpoena or warrant or something, but US Customs officials can and will demand the passwords t

You're correct. They're assuming that they might be served with a subpoena or warrant or something, but US Customs officials can and will demand the passwords to your personal devices or coerce you into giving your biometrics https://www.eff.org/issues/border-searches https://www.eff.org/issues/border-searches