Is a peek into the future worth your privacy in the present? That concern was pushed to the spotlight this week with the resurgence of a smartphone app that uses artificial intelligence to transform your current face into your younger and older selves. People raised fears on Twitter and other social media sites that on iPhones, FaceApp would be able to see and upload all your photos, including screenshots with sensitive financial or health information or photos of children with the names of their schools in the background. That's not actually true, but the scuttle serves as a good reminder to think twice before downloading new apps. Even large, mainstream apps routinely collect user data.