Does this effect all electronic devices? On a recent trip to the UK, I nearly bought an old video game console at a retro game store since it was a very good price. I didn't have the power converter on me, would have configured it when I got to the US. So if I do that on my next trip, my console would be confiscated because I didn't have the power cables to turn it on? Or because I didn't have a TV to attach the console to? I wouldn't trust it in checked baggage because it's valuable and I want to keep it with me.

So are we at the point where we need to Fedex our belongings to ourselves before fly?