Concerts etc can be blocked by setting up an infrared signal that sends data to the Apple phone and activates the disabling of the camera.
These infrared streams can also contain data streams so that you can get info about objects in a museum if they have placed an infrared sender there with the info.
I wonder if those infrared blockers come in a handheld edition so that I can block everything here
It is hard to see how Apple intends to sell more iPhones with reduced functionality - where is the market? It is not in the private sector but maybe the public one is willing to pay a lot for it.
More here
