Beggars in Spain is an interesting treatment of that idea: http://www.amazon.com/Beggars-Spain-Trilogy-Nancy-Kress/dp/0380718774 http://www.amazon.com/Beggars-

Beggars in Spain is an interesting treatment of that idea: http://www.amazon.com/Beggars-Spain-Trilogy-Nancy-Kress/dp/0380718774 http://www.amazon.com/Beggars-Spain-Trilogy-Nancy-Kress/dp/0...