Will chicken and milkshake shortages get worse before Christmas?

First it was Nando's, then McDonald's, and finally Greggs. Supply issues at major chains have forced a shortage of milkshakes and chicken, with the problems this summer seen as a warning of what's to come. We speak to Business and Global Trade Correspondent Paul McNamara to discuss why there aren't enough lorry drivers and workers - and why the British workforce isn't queuing up to take the vacancies. How bad could this all get? Could it damage our economy? And is this just the tip of the iceberg as we head for the winter months - with another Covid wave possible?