Supply chains is something we've heard a lot about over recent months.
But broken supply chains is something we might hear about in the coming months if some of the grimmer predictions about challenges in land transport come to pass.
Overseas, Omicron staff absences have been an issue for truck drivers, but policy failures have also played a part in the problems.
Mainfreight managing director Don Baird has been taking notes his company's sister operations in 26 other countries.
He spoke to Corin Dann.
