Why Has Copyright Expanded?

Netanel's recent essay, Why Has Copyright Expanded? sheds some light on his views about the "Blackstonian" conception of copyright and Netanel's thoughts on moral rights' compatibility with free speech.

The first half of the essay documents the expansion of copyright and paracopyright over the last 12 years or so.

Then Netanel explores theoretical justifications behind more expansive copyrights.  He writes about moral rights arguments last and most sympathetically.  I think this section should be part of Copyright's Paradox, because "Blackstonian" and "moral rights" aren't defined well in the book.