New Yorkers can use PCs in the city's 200 plus public library branches to surf the Internet and go anywhere they like, thanks to a policy that gives adults the most unfettered access to extreme, hard-core Internet smut this side of the old Times Square.

New York Public Library officials say adults have this right under the First Amendment.

Under U.S. law, libraries that take federal funding are required to install filters on publicly used computers to block content containing "illegal" obscenity and child pornography, and New York City officials say they're complying with the law to the letter.

But even with the filters, anyone 17 or older can turn them off and troll for whatever sexual content floats their boat -- no matter how deviant.

One elderly library patron says she was totally grossed out recently when she found herself sitting next to an elderly porn watcher in the Brooklyn Central Library.  She says she couldn't see what he was looking at, because of the side screens, but she could hear it and it was disgusting.

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