Google's quietly pitter-pattering its acquisitive ways back into the controversial realm of facial recognition technology. To do that, the company busted out its oversized wallet to fold Pittsburgh-based PittPatt into the Mountain View borg. Founded by a trio of PhD's from Carnegie Mellon University, this three-man strong outfit specializes in the sort of object recognition software you've come to know as "tagging." Is this a reversal of the Do No Evil tech giant's prior waffling on the dubious visioning tech, or just another massive weapon in its
