“UK Border” is the sign that greets passengers arriving at Heathrow. The airport is not on the border. It is in a west London suburb. But the wording carries a message: “You are approaching a barrier. Do not expect an easy time.”

The government’s online visa and immigration page is just as forbidding. This week, below the link to visa applications, were three news stories. The first was about a health surcharge for temporary migrants. The second reported on a London-based Moldovan accountant who was fined for providing unregulated immigration advice. The third said that “nearly 800 foreign criminals are being kicked out of the country”.

These are all important issues. But what would it cost, apart from a few buckets of paint and a little computer work, if the government’s information page and the sign at Heathrow — and all Britain’s entry points — said “Welcome to the UK”?