Boing Boing :

An Apple patent describes a system for allowing venue owners to override compliant cameras. The patent describes using an infrared signal that compliant cameras would detect; in the presence of this signal, the device would not allow its owner to activate its record function. It is intended for use at live events and galleries and museums, and it will be a tremendous boon to policemen who shoot unarmed subway riders, despotic armies putting down revolutions as well as anyone else who is breaking the law or exercising coercive power.

This is part of an increasing trend to designing hardware and software that allows remote parties to override the instructions of the owners and users of devices. This trend, coupled with the increasing degree to which devices are privy to our secrets, our sensitive information, and even our biological functions, worries me an awful lot.