Judge Kozinski jumps on the Commerce Clause bandwagon. This seems to fall right in line with the Lopez decision, which also involved guns. What does the private possession of a machine gun have to do with interstate commerce? Nothin', unless the good people of Vancouver, Washington are shooting people from Portland, Oregon. Which is understandable, if you've ever met someone from Oregon (Judge O'Scannlain excepted, of course, if he's reading this site like millions of others). Vancouver, WA happens to be the third fastest growing metropolis in the country, by the way. Portland isn't.