I don't think they are there to greet customers. I believe they are there to create an illusion of security, to discourage people from stealing books and DVDs. There are many people who walk out with 10 or more books and/or DVDs that they have not checked out and will never return. I have seen it happen at both of the Sumter County libraries, but especially at the one on Powell Road. The libraries have no security system to prevent people from just walking out with the materials. In the past, library materials had a security device and scanner at the door, but not anymore.
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