This post about the damage inflicted by 1201 reminded me of another 1201: Halon 1201, banned because it depletes the ozone layer. A serendipitous coincidence, with this post talking about 1201 like an ecological threat.
More seriously, the GPLv3 contains an interesting provision. Search for "Anti-Circumvention" in this to find the section: https://www.gnu.org/licenses/gpl-3.0-standalone.html
The second paragraph is probably enforceable, but I'd be interested to hear from someone suitably informed whether the first paragraph has any basis. How far can it be taken?
For example, one of the most insidious things about the Blu-ray format is that unlike DVD and HD-DVD, commercially pressed video Blu-rays are obliged to use AACS. Theoretically non-AACS discs could be pressed and work, but the replication plants aren't _allowed_ to print non-AACS video Blu-rays. This has caused some consternation where people want to distribute Creative Commons/etc. video on optical media, more than can fit on a DVD. I think I recall Archive Team talking about just having to resort to putting video files on a data Blu-ray instead.
If someone made a film, put "Neither this work nor any derived work can constitute an effective technological measure for the purposes of the WIPO copyright treaty or any corresponding legislation" in the credits, and then someone else got AACS'd Blu-rays made of it, would 1201 thereby not prohibit breaking AACS specifically in the context of that Blu-ray? It seems rather dubious.