With great power comes great potential for abuse. Back in 2011, Apple filed a fairly controversial patent, which would allow the cameras in their devices to be turned on and off at will by external forces. In theory, this would allow locations and venues that have “No photography” zones to enforce this rule more passively.
Aimed presumably at concerts, cinemas, museums, private company areas and the like, it comes across a feature for good. To help protect one’s rights and intellectual property. On the flipside, however, people are worried that this technology could also be used to prevent freedom of speech and freedom of the press.