With the deadline for Britain’s “Brexit” from the European Union (EU) coming up at the end of the month, the details of the country’s withdrawal from that economic and political union remain fuzzy, as does the actual timeline for the separation—and even whether the secession will take place at all.

But while British lawmakers debate the wisdom of reasserting national sovereignty and the shape that sovereignty might take, it’s obvious that there are distinct benefits to at least some people in the firming up of borders, writes J.D. Tuccille. That is, there’s real potential for liberty and profit in having conflicting rules on either side of arbitrary lines that can be crossed by smugglers.

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