Thank you for your excellent comment, greatdabu. And while more sophisticated and "humane" programming may be an answer, we are still left with the huge issue of such programs being written by human beings, who even if they could avoid making mistakes in the programming, would also have to be paragons of virtue, to not fall prey to temptations of power, like in every other aspect of human behavior and enterprise. Playing with deadly fire... I have followed you, btw, please follow me (-: