The public domain status of federal government works is enshrined in the Copyright Act. Until now California has followed the same core principle—documents, pamphlets, photos, videos, and datasets produced by the state are public domain. A.B. 2880, a bill quickly moving in the legislature, would overturn that idea, allowing governments—at the state, county, and local level—to exercise copyright restrictions on the materials they produce. This bill threatens government transparency and sets the stage for censorship and suppression of public information. - EFF: California: Public Records Should Be Public Domain
People who insist that copyright isn't widely used for censorship are the same ones who want to use it for control of the content and the terms of the distribution thereof. That's what censorship IS. In this case, as they pointed out, it's being used to subvert democracy by controlling access that people could use to make informed choices. If you are American, please get on board.
Read more: https://action.eff.org/o/9042/p/dia/action/public/?action_KEY=10331