After filing for bankruptcy and closing more than 800 stores last year, Toys "R" Us is back. The iconic retailer has opened two new mall outposts, one in Texas and another in New Jersey, in time for the holidays. The stores are packed with some of the most kid-coveted products of the year, but have been garnering attention for another reason: the surveillance technology they’re using.

Get in-depth coverage of current and future trends in technology, and how they are shaping business, entertainment, communications, science, politics, and society.