'If it reassures people, then it is a perfectly reasonable measure to take'

James Daunt is the Managing Director of Waterstones bookstores in the UK and CEO of US bookshop chain Barnes and Noble. He told Nick Robinson that he felt asking customers to wear a face covering was a "reasonable measure" to help boost confidence amongst shoppers. He went on to say that staff working across his chain of stores would not be asked to "police" the wearing of coverings: "There will be a tiny, tiny minority of people who will be confrontational over it and it is not the position of shop workers to enter into that situation". With Linda Bauld, Professor of Public Health at the University of Edinburgh. Credit: Getty Images