and that could lead to higher prices permanently, alongside otherfactors, from us—china tensions, post—brexit visa restrictions orfears over uk—eu trade. it's a global economic challenge and it's not going away. faisal islam, bbc news, in washington, dc. we can now speak to terry esper who's an associate professor of logistics at ohio state university. thank you for coming on the programme. thank you for havin- thank you for coming on the programme. thank you for havin- me. thank you for coming on the programme. thank you for havin- me. it thank you for coming on the programme. thank you for havin- me. it is thank you for having me. it is a mess are — thank you for having me. it is a mess are there, _ thank you for having me. it is a mess are there, what - thank you for having me. it is a mess are there, what are some things we can do to fix it? i think that we are seeing, in terms of navigating through the congestion that we are facing as a lot of companies investing in a sense that they are investing and chartering vessels, we see companies standing up your operations