Alan Day
Apps need permissions to access certain aspects of a phone. Facebook is no different.
If you want to take a picture directly through Facebook it needs access to the camera. If you want to send an audio message it needs access to the microphone. Facebook isn't the only app on my phone, or yours,that needs access to all of these things. But because it's Facebook everyone gets into a panic. I'm not saying Facebook is the most angelic company on the planet but.........
http://www.pcadvisor.co.uk/news/social-networks/3537202/facebook-messenger-app-isnt-evil-its-not-about-spy-on-you/
http://bgr.com/2014/08/12/facebook-messenger-for-android-permissions-explained/
http://www.huffingtonpost.ca/kris-constable/facebook-messenger-permissions-privacy_b_5672367.html
And I seriously doubt they are doing this because of the G20 here in Australia....geeez