Good point. Dan has posted at least three shots from this angle. BW, Green, and Color
Stolen.
IIRC, POTUS was super stoked about seeing Churchill's bunker, where they did the decoding.
Definite OSS bunker air about this place. And as amateur as it can get. No pay, no name, just pure love of country.
Watch Pepe make one.
1 If by land
2 if by sea
But those aren't the only vectors today
3 if by air/space
Invisible enemy
In by sea, on cargo ships, then to your home. Goods from China.