The UK Government has released documents relating to its "Operation Yellowhammer" preparations for a no-deal Brexit.
The five pages published on the government website warn of a rise in public disorder, delays lasting three months at Channel crossings, "significant" electricity price rises and impacts on medicine and food supplies.
So, is it all as bad as many feared?
Ivan was joined by David Blanchflower, Professor of Economics at Dartmouth College in New Hampshire, who says that the UK have just volunteered to hurt themselves economically.