Nelson: I think - you mean a sort of inner understanding, an intuition, not a rational understanding but a feeling? I don't doubt that there are companies who will do that sort of thing - if allowed the oppertunity. I have read of cases of this happening. However, that does not make it a major problem. We have federal regulations and lawsuits to keep the companies under control. In the US, at least. Possibly. But many people are good actors like that. Well I won't argue with you there! But it's not science at all, and shouldn't be posted in 'science'. See my point?