There are several issues pertaining to our right for privacy and how this conflicts to with our right for freedom of speech. These discussions do become very confusing because it affects everyone of us personally and hence discussions can be subjective.
And then we have the factual elements:
1. pervasive and growing use of photography and CCTV
2. what happens to the output from (1)
Lauren has setup a discussion thread that has some active participation with differing viewpoints.