But information isn't free. It can't be. I mean, some things — if anyone could read anything they wanted, they might read things that would tend to deprave and corrupt them, wouldn't they? People might give exactly the same consideration to blasphemous pornography that they pay to the Bible! They could plot against the state, or each other, without the police being able to listen in and stop them!
Singularity Sky (2004), page 342 of UK edition of 2005