East Palo Alto girls create app to clean up graffiti, trash
The EPA Chica Squad members, from left, Margarita Tenisi, Rosie Valencia, Ashley Davis and Vanessa Tostado created an app called "Tag It!" that not only records the location of graffiti but helps create an event to get it cleaned up. Their app placed in the top 20 worldwide in the Technovation competition. Photo by Elena Kadvany.

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