Apple filed a patent some time ago suggesting technology that could be used to turn off cell phone cameras at, for instance, concerts.
Of course, such technology would eventually be hacked and soon anyone could prevent cell phones from recording riots, police action, etc.
It requires software on the cell phone, and is unlikely to be deployed, but the patent now exists, so who knows what apple will try...
http://www.metro.co.uk/tech/866623-iphone-jammer-to-stop-users-uploading-videos-onto-youtube
(sorry, forgot the link when I first posted it)
Of course, such technology would eventually be hacked and soon anyone could prevent cell phones from recording riots, police action, etc.
It requires software on the cell phone, and is unlikely to be deployed, but the patent now exists, so who knows what apple will try...
http://www.metro.co.uk/tech/866623-iphone-jammer-to-stop-users-uploading-videos-onto-youtube
(sorry, forgot the link when I first posted it)