Sarah Galvin undertook a highly scientific test of the Seattle Public Library's public porn viewing policies over at VICE.

I live in Seattle, and this past January, a local mother named Julia Howe was at the Lake City library with her 10-year-old daughter when they came across a man publicly viewing hard-core porn. When Howe asked a librarian to move him to a more discreet location, the librarian refused. Howe ended up taking her complaint to local radio stations and newspapers, and started a small tempest around the issue, with pissed-off parents on one side and librarians on the other. The librarians stuck to their guns, and now any of us can walk into the computer room and view some hot, raw, constitutionally protected porno.

Galvin tested this theory by watching porn at the Central Branch downtown. I very much recommend you read the whole thing.