Conservatives don't have to believe that concealed carry of loaded guns in public places poses unacceptable risks in order to be opposed to H.R. 822. Principled conservatives -- even those who think concealed carry is a positive good -- should be driven to the same conclusion.
Three years, 400 legal challenges, and "millions of dollars in legal bills" later, all the gun lobby has had to show for its efforts is a body of case law affirming the right of the people to have strong gun laws.
The Supreme Court's ruling in District of Columbia v. Heller has largely resulted in a reaffirmation of the constitutionality of laws to restrict access to firearms. For the "gun rights" forces, it has been three long years of frustration.
If Scalia and Stevens were competent historians, then it might be worth reading what they write. But they are not. Both offer selective readings of history to support what seem to be pre-determined positions.