The “ploughshared” fuselage of a Z-1 “Buzzard” flying bomb found on a farm near the Dounreay Nuclear Power Development Establishment, Caithness. During WWII, the government devised a fall-back strategy that was to be implemented if the Nazis’ planned invasion of England succeeded: a new front was to be established along the border with Scotland. The military’s top-secret missile programme, spearheaded by many conscripted Scottish rocketry enthusiasts, was intended to form the last line of defence – or attack – in such an extremity. This so-called fuel tank is still slightly radioactive.