Boris Johnson has been making the civil service actually draw up plans for a roundabout under the Isle of Man with 4 tunnels connecting Stranraer, Belfast, Liverpool and Heysham under the sea.
It is understood Boris insisted on research for this plan after officials informed him that his previous idea - a direct tunnel from Stranraer to Larne - would be impossible due to the
almost 2million tonnes of army munitions dumped in Beauforts Dyke over the last 80 years.
One of the tunnels would need to be 3 times longer than the longest tunnel ever constructed.
Graphic of the proposed tunnels in link from Times feature
https://twitter.com/nicktolhurst/status/1363498733921587206/photo/1