Not sure why you are downvoted. When unvaxed person takes a test to, for example, take a flight, we know reasonably sure he's not carrying/infecting fellow pas

Not sure why you are downvoted. When unvaxed person takes a test to, for example, take a flight, we know reasonably sure he's not carrying/infecting fellow passengers. When vaxed person goes on the same flight he/she might well be carrying/infecting fellow passengers, because the vaccine does not stop infections. First we needed to get vaxed for saving the old and sick by herd immunity. Since vaccines do immunize the herd immunity is no longer discussed. Then we needed to get vaxed for stop the ICU overload. Since the old and sick are vaxed and/or have already been sick, we now have no more overload on the ICU. But we still need measured because some infection metrics need to stay out of the red to allow tourism/trade to pick up. This is some serious goalpost changing. Why?