] In other words, anyone viewing a Webcast of material that
] falls outside of copyright--such as a government-created
] documentary or a very old movie or audio recording--may
] not be able to freely store and redistribute that
] content.

Big webcasters have tipped their hand. They are now a worse threat then the RIAA. They have created an international treaty which makes it illegal to rebroadcast public domain material that someone has webcast unless the webcaster also disclaims "rights." This is unfathomable. Just like the DMCA, this law takes public domain material and makes it unavailable to the public. This isn't even about once copyrighted works not entering the public domain. This is about works that were never copyrighted being sucked out of the public domain.