The authorities in Tibet apparently see printing and photocopying shops as potential channels through which unrest can spread. One Chinese print shop operator in Lhasa, who is of the majority Han ethnicity rather than Tibetan, said that her husband had been summoned to a meeting last week on the new requirements.

"You know sometimes people print documents in the Tibetan language, which we don't understand," said the woman, who gave her last name as Wu. "These might be illegal pamphlets."

The reason this matters is that to find someone to be liable under secondary infringement (contributory liability), a plaintiff must show that the defendant had knowledge or reason to have knowledge of the direct infringement. This is one of the two mechanisms, along with fair use, that shields libraries from liability if they keep a copy machine by their shelves. If an entity can be directly liable for providing and maintaining a copy machine, and taking payment for copies made on the machine, then libraries have lost a not insignificant shield.