There used to be a post here in the archives with an interview with a grammar expert which parsed the entire Amendment and addressed the "comma" issue. I believe it was by J. Niel Schielman(?). Anybody know where it is? My search comes up dry.
"At issue is the meaning of the oddly constructed text: A well-regulated militia, being necessary to the security of a free State, the right of the people to keep and bear arms, shall not be infringed."