In much the same way as a border guard can go through the clothes in your luggage, they can thumb through the personal contents of your phone.
Last week both Microsoft and Apple released new input devices: a puck and a bar. We'll see if the tortoise beats the hare or the puck trumps the bar in the years ahead.
Hearable are the next step in wearable electronics. It is a private and relatively distraction-free device that could prove revolutionary for some and down right frightening for others.