Parliament took evidence yesterday from supply chain experts on the nature of the problems and how brexit had turned pressures into crises on each occasion. They were all incredibly clear that our hard brexit had led to the critical shortages that we are seeing now and that the government were seemingly clueless as to the scale of the problem or the responses that are needed.
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Parliamentary hearing: https://www.parliamentlive.tv/Event/Index/ae3264c1-39c5-46ac-97f4-a1a170cef413