The Prime Minister is being urged to come clean on the risks a no-deal Brexit poses to the UK's food supply. Former prime minster Gordon Brown joined the GMB union, campaign group Hope Not Hate and food charity Sustain, to warn Boris Johnson that crashing out of the EU threatened food supplies. Report by Browna. Like us on Facebook at http://www.facebook.com/itn and follow us on Twitter at http://twitter.com/itn