Britain’s foreign secretary Boris Johnson says it’s time Britain and France were linked by a bridge, calling it “ridiculous” that the two European powers were “only linked by a single rail line”. But is it even possible? And which side of the road would they drive on? The often loose-tongued and bungling Johnson made the eyebrow raising suggestion at Thursday’s Franco-British summit, held at a British army base. Johnson, who along with Theresa May had thrashed out a new summit with French president Emmanuel Macron, championed the idea of a bridge over the English Channel. […] … [T]he idea of...