Dr. Goldwyn is a resident scholar at AEI, and argued for a collective or state's right meaning of the Amendment. I've trimmed his to make the download shorter, since he didn't have a great deal to add (i.e., while we don't have records of the debates in the Senate, we do have the Senate Journal, listing motions and votes, and it shows a proposal to add "for the common defense" after the right to arms was made and voted down). (1.2 meg download)