| http://www.w3.org/ns/prov#value | - tch on a big upgrade. the change internet users may notice right away. >>> when businesses >>> for many merchants graffiti and vandalism can be an unfortunate fact of life. the latest attack is something they say they have never seen before. john sasaki shows us what the vandals did and what the business owners are calling for. >> reporter: 17th street in oakland bustles with diners and shoppers dur
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