With a slight adjustment the old fairground cry is relevant here: "You makes your choice and then you pays your money."

I think John's right here - there are so many unknowns that making moral judgements just isn't possible.

Wolfgang's scenario put in a few "facts", and left everything else open. There's always a natural tendency to fill in the spaces when that happens - rather in the way the old Mars watchers used to fill in the dots and actually see canals; and they'd get very cross indeed when people doubted they'd really seen what they drew.