ANECDOTAL STORY
I personally know someone who recently graduated from UC Berkeley with a degree in Computer Science.
As a friend who cares, I advised him to avoid the protests in Berkeley, because even if he showed up as a spectator with his cell phone, he'd be tagged, bagged, flagged, and fucked by a Stingray as a participant in civil unrest.
He responded: 'We're aware of all the tracking stuff. None of the Engineering students do that shit. Those are Liberal Arts majors.'
Sanity exists.