I fully agree and am not one of those nuts that covers his camera...but there will always be people who insist the NSA injects software that enables the camera while bypassing the little green light. I suppose it's possible, but frankly I do not care. There are so many more avenues for silent, undetectable tapping so the only real solution is to live in a cave without any connectivity. I enjoy my life so I just live it but some people will always be paranoid.
So, cut a little circle out of a piece of black electrical tape. There, you are locked, loaded and have beat the NSA I guess. Oh and don't forget to cover your microphones, phone microphones, cameras on your phone, unplug your TV, internet and phone. And never leave your basement. Sounds fun I guess.