"Sanitation"...hmm...there was a -very- clear intent a long time ago to add "Carbon pollution" to the countries, and Electric Power was supposed to be a 'high carbon producer' whereas Nuclear Power would be a '0 carbon producer', or something similar to that...what happened to that "ASAP implementation"?
Maybe whitedarkness or another leader an comment who knows more details, but, really a "pollution" or "envirnomental" index are similar ideas to "sanitation", but expanded to include larger corporation as well as country and military factors.