1	"Looking at Copyright Law as..." Looking at Copyright Law as a Computer Scientist Consumer Teacher of an E-Commerce Course Joan Feigenbaum http://www.cs.yale.edu/~jf February 2003
2	Content-Distribution System Specification Part of the spec should be “enforce copyright law” (or at least “obey copyright law”). In US Copyright Law Owners are given (fairly) well defined rights Users are given “exceptions” to owners’ rights. This is no way to specify a system! Need affirmative, direct specification of what users are allowed to do.
3	What if Someone Builds a Good TPS? Lots of clever arguments in favor of Users’ rights to reverse engineer Users’ rights to circumvent These arguments are correct but insufficient As system engineering (see “specification” slide) As a philosophical position: If fair use is a part of the copyright bargain, one should not have to hack around a TPS to make fair use. As protection against ever-expanding rights of owners: What if someone builds a TPS that can’t be hacked?
4	Content-Distribution System Engineering “Fair use analysis therefore requires a fact intensive, case-by-case approach.” [Mulligan and Burstein 2002] This is no way to engineer a mass-market system! Need to be able to recognize the typical, vast majority of fair uses extremely efficiently and permit them. Note that, in the analog content-distribution world, the vast majority of fair uses are non-controversial.
5	The Way Forward “The best TPS is a Great Business Model.” [Lacy, Maher, and Snyder 1997] Use technology to do what it does naturally. An Internet content-distribution business should benefit from uncontrolled copying and redistribution.