Jose writes:

No. But they will ask a librarian for records, and she will comply or
not. If she refuses, she'll go to jail. If she breaks the secret,
she'll go to jail. It is not at all unenforcable. It is only needed
sometimes, and those times you can be sure it will be enforced.

I've heard of libraries that regularly announce that they haven't been
told to provide records (which is legal). One day they stop
announcing that, and you know that the government demanded someone's
records.

Accept the fact that life is risky. Accept the fact that freedom is
lost long before security is gained.

The only thing we have to fear is fear itself. Fear is routinely used
to undermine freedom.

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