DHS Can Seize Your Electronics Within 100 Mi.of US Border, Says DHS – Slashdot.
I used to live in Tijuana and lots of my friends would cross into the US while carrying laptops, cellphones, iPods, tablets, cameras… all sorts of things.
I guess the DHS wants people to travel to the US like they would to China: no electronics whatsoever, lest they get bugged, tapped, hacked, or stolen — usually by the authorities.