On the one hand Mark Zuckerberg covers the webcam on his computer with tape, which is smart. On the other hand, he covers the microphone with tape too, which makes no sense. I think I must have missed the memo about sound not being able to go around or through tape, even though it can go around or through so many other materials.
I have a feeling that the person who came up with that 'See something, say something' ad campaign for public transit never actually spent much time on public transit. The rules for judging something as suspicious go right out the window in that environment.