contd from below.... "when there is a demand there will always be a suppy." The supplier can either be a legal agency or a mafia; hence legalistaion. Again legalizing does not mean promoting vice but putting into place effective control measures and bring the trade under government survellaince. Your theory of "banning" is quite primitive thinking. Just try banning anything, it become more popular. Haven't you watched banned movies or read banned books.