It’s kind of funny how often the words creepy and convenient can be used to describe the same thing, and Facebook’s new Messenger experiment is definitely one of those things. The experiment will be rolling out to Android and iOS users in Australia this week, and will allow users to enable facial recognition software to scan the photos they take in search of people that are on their friends list. If any friends are found, Messenger will prompt the user to send the photo to the friends who are in the photo.