Nice to hear the view of Road Plod. Some good prose on 'defensive driving' - but I note that he didn't defend these bŁoody cameras. The ones which I consider exceptionally dangerous are those placed on straight single carriageway roads where it used to be safe to overtake the 55 mph truck in front of you by 'mirror, signal, manoeuvre' - drivers would keep their eyes on the road ahead, accelerating briskly to minimise their exposure on the 'wrong side' before pulling back in to the 'correct' side and continuing at 60 mph. But now, wary of Plodcams they overtake at 60 mph, so that the time spent on the wrong side is considerably increased - where it might once have involved a speed difference of 15-20 mph, it's now only 5 mph - so they spend perhaps 4 times as long on the 'wrong' side....
If you want examples, just drive down the A40 from Burford to Gloucester....where once it was safe to overtake, these ba$tard things now make it very dangerous.
Mind how you go Sir....