Firstly, this post is in no way an attempt to troll. I've seen a lot of backlash for the CCTV images used in the UK, etc, but don't really get the argument behind this. I fall more in the, "if you didn't do anything wrong you have nothing to worry about" camp.
I understand that people have civil rights, but how is being put into an indexed database really violating your rights? The FBI already has the right to bring anyone in for questioning, so why is it unreasonable to be able to bring someone in if their image pops in a search? If an agent saw a criminal act captured on camera, and then passed someone on the street who matched the visual description, i'd imagine they'd bring them in for questioning as well.
We already have a database for convicted criminals. Why should a person's image not be included in the search if this is the first crime they have committed?
And for the record, I support the right to bear arms, etc. I just think that if this is able to catch one person who is about to become a repeat offender, then i'd gladly waive my right to keep my photo private in exchange for that one victim being spared.