...as to the question, here is more than you could possibly want to know on the subject -- but the point being that you really need to know all the history to know what the founding fathers had in mind by using the words "well regulated militia":

http://home.pacbell.net/dragon13/senaterpt.html

as with many things in the constitution, people try to apply today's English and context to twist things; not dissimilar to the eisegesis which goes on with the Bible. context, context, context...