Although I haven't looked into it in detail, yet, the T430 I have at the moment has a physical switch for WiFi and Bluetooth functionality. I want the same for

Although I haven't looked into it in detail, yet, the T430 I have at the moment has a physical switch for WiFi and Bluetooth functionality. I want the same for the built-in camera and mic. A little physical "red switch" that no amount of coding can defeat. I agree with others, here. I'm worried at least as much about the microphone as I am about the camera. I can always physically block the camera -- and control what it is pointed at. Further, I'm not comfortable with plugging in a microphone to "override" the built-in microphone. Physical design alone leaves me certain (although without proof) that this "override" is controlled by code. And a bit of experience with software that overrides such defaults to allow simultaneous input over multiple, "normally" orthogonal channels leaves me convinced that such can likely be done with the internal microphone of most devices.