The Yellowhammer document states that, in the event of a no-deal crash-out, a hard border between Ireland and Northern Ireland would be inevitable, but the right hon. Gentleman has dismissed that out of hand. The Government have also pledged to end freedom of movement. We have heard about this mythical technology; can the right hon. Gentleman explain what technology will end freedom of movement by checking people’s passports and visas, and will also check customs arrangements and tariffs on goods moving backwards and forwards between the different markets, without as much as a camera at the border in question?