* Ask about constitutional clause

* THEN ask how old copyright is

* What is its purpose (draw all answers on board)

* retroactive extensions: constitutional or not?

* retroactive extensions: violation of principles of contracts or not?

* Was Eldred v Ashcroft a reasonable decision?

* Growth in copyrightable subject matter (e.g., software) compared to
  same in patents.

* ACTA / "counterfeiting" (the old copying-vs-credit confusion, now
  extended to fiat currency)

* Show a couple of memes at the end.  Or maybe show them during!