On 23 March, one of the largest container ships in the world became wedged in the Suez Canal. The queues began to get longer as other vessels carrying cargo such as livestock, Ikea furniture and tea, were held up either end of the waterway. It took six days to free it - with tugboats, diggers and dredgers all taking part in the operation. But the shipping route could take months to return to normal. Host Dermot Murnaghan is joined by Sky’s defence correspondent Alistair Bunkall to discuss who should be held accountable; and Rose George, journalist and author of Ninety Percent of Everything: Inside shipping, describes what it’s like to go down the Suez Canal.