If you're a frequent international traveler to or from the USA, the EFF Travel Guide is a must-read. https://www.eff.org/wp/digital-privacy-us-border-2017 http

If you're a frequent international traveler to or from the USA, the EFF Travel Guide is a must-read. https://www.eff.org/wp/digital-privacy-us-border-2017 https://www.eff.org/wp/digital-privacy-us-border-2017 tl;dr for American citizens: encrypt everything and power off your phone and laptop before entering border checkpoints, you cannot be denied entry. tl;dr for everybody else (including green cards): either carry burner devices or ship your devices to your destination. Otherwise, you must be prepared to accept an electronic search.