San Francisco Police took extra precautions on Black Friday in the Union Square area to protect businesses from more smash and grab robberies, but shoppers largely stayed home

For more, KCBS News Anchors Holly Quan and Matt Bigler spoke with KCBS Insider Phil Matier.

<p>San Francisco Police took extra precautions on Black Friday in the Union Square area to protect businesses from more smash and grab robberies, but shoppers largely stayed home</p>
<p>For more, KCBS News Anchors Holly Quan and Matt Bigler spoke with KCBS Insider Phil Matier.</p>

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