RFID in San Francisco libraries

In typical San Francisco fashion, when the city's public libraries started looking into an RFID monitoring system there was no end to the loud lamentations over various privacy losses.
One group calling themselves SNAFU (the San Francisco Neighborhood Antenna-Free Union) even claimed that RFID tags would supposedly shower library patrons with cancer-causing emmissions. (Maybe the critics didn't know that their neighbors in protest-mecca Berkeley have been using an RFID library system for awhile, along with Santa Clara and San Mateo.)  On Thursday though, despite all SNAFU-type protests, the San Francisco's Library Commission approved the RFID system's original $300,000 funding and determined to push the project forward.