John Kennedy was on to them - he and his brother - gone.
Carl Sagan spoke of 'the dumbing down of America' - of 'nuclear winter' - and of so much more.
Jefferson, Lincoln and Theo Roosevelt spoke clearly of 'moneyed interests' - and Dwight Eisenhower warned us in his own way.
Yet here we are.
It is extremely difficult to believe that other than collapse will re-set things.
And if this happens - will it just be - repeat ?
Well - I remember getting myself and my group into a fix once on a mountain. The only viable alternative was an entirely new route down over the top of an icefall.
We were lucky, or else I wouldn't be writing this.
Maybe - maybe it's going to take such an existential threat - obvious to all - before we act ?
And we are going to need a horseshoe or two.