This is not an invalid criticism. But, on the other hand, I really really like the analogy. It illustrates some of the issues very clearly. Maybe a slight imp

This is not an invalid criticism. But, on the other hand, I really really like the analogy. It illustrates some of the issues very clearly. Maybe a slight improvement on the analogy would be to say "install video cameras in every room of your house" rather than "make the walls out of glass".