Ian F. wrote:
"Neil Williams" wrote in message
...

I'm led to believe that that sort of thing also goes on in the event
of a plane crash (where the wreckage is recognisable as such).

Yup. Pretty much standard practice.

But why? What's the point of it? It seems just as stupid as blurring
out registration plates on cars in TV reports - anyone on the scene
could see them anyway.

Peter Beale