FACIAL RECOGNITION CAMERAS peering into San Francisco nightspots. “On Friday, a company called SceneTap flipped the on switch enabling cameras installed in around 20 bars to monitor how full the venues are, the mix of men and women, their ages — and to make all this information available live via an iPhone or Android app. Privacy advocates are unimpressed, though, as the only hint that people are being monitored is via tiny stickers on the windows.”