Way back when, in the height (1960s) of the Cold War they used to test the 4-minute warning sirens that infested the UK back then. What you were supposed to do

Way back when, in the height (1960s) of the Cold War they used to test the 4-minute warning sirens that infested the UK back then. What you were supposed to do in those 4 minutes was never clear. Later, in Thatcher's regime, you were supposed to hide under a table. All such things are very frightening. If you have ever heard a full wing of Vulcan nuclear bombers (my dad was a Vulcan captain) taking off when you didn't expect it (which you didn't, because of the Official Secrets Act) you will also know what dread is like. I hope this isn't some bloody anti-Putin meaningless gesture by our ridiculous government, but I expect it is. PS I am anti-Putin.