Well, if nobody has yet found the answer to the problem, then the previous 
research hasn't been worth very  much, and one might as well start over. 
Actually, the previous research is culled over thoroughly for what useful 
information it may contain, at the risk of grooving the proposed new 
investigation.

Walter


> Why, oh why, does every country seem to have to research things like this 
> independently?  So much money must be wasted!
> Peter

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