"And you can bet that countries like China and Russia aren’t far behind" - I am a Russian citizen and I cross the border of Russia very frequently and I cannot agree with the statement. The worse thing I've been asked about was "what is the goal of your trip". Getting your phone on the border of Russia is something impossible, it's just unimaginable. I've never been asked to show anything except for my passport. At least now and for the time before this moment.