Fair use: Affirmative defense, or right?

A great piece by a paralegal, looking closely at fair use rights as an appetizer to a discussion on DRM.

BTW, keep an eye on Golan v Holder, which will take a good hard look at the URAA agreements which brought back into US copyright millions of works by foreign authors. I remember going to many seminars and talks about how it was being implemented at the time--what a mess.