Over the last month or so, a few keen-eyed Android users may have been startled by some peculiar permission requests when they tried to update their Facebook app. One request asks to "read your text messages (SMS or MMS)." That's not exactly the kind of language users are likely to find reassuring, especially after recent allegations that Facebook has been scanning private messages within the social network. So, Facebook is currently on a PR offensive to calm user fears. "We realize that some of these permissions sound scary," writes Facebook. "So we’d like to provide more info about how we use them ... If you add a phone number to your account, this allows us to confirm your phone number automatically by finding the confirmation code that we send via text message." Read the full story at Fast Company.