I don't agree with him on a federal CC license but I do agree that full reciprocity is desirable.
The comment by Jack Burton after the article is too funny for words.

It was obviously written tongue-in-cheek but I wonder how many people in Illinois will see the humor, the logic, or the point made.
I can't quote it easily without having to quote all of it so I will leave it to the reader to go read it for themselves. It's the second oldest comment.
http://napervillesun.suntimes.com/news/ ... deral.html
John Lott pointed out this effect in the first edition of "More Guns - Less Crime" and each of the following editions just verified it.