Facebook on Thursday took the wraps off of a new feature that, depending on your perspective, is either incredibly cool or incredibly creepy. For this reason, the company has wisely decided to make this new feature strictly an opt-in affair to avoid completely freaking out users who are sensitive to privacy. The new feature, called Nearby Friends, lets you “occasionally-be notified when friends are nearby, so you can get in touch with them and meet up.”-The feature lets you and your friends give your-precise locations in real time, although you have to explicitly give the app permission before it’s allowed to do so. More crucially, the new feature won’t flip on at all unless you specifically tell it to, which



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