Of course, I question reasoning behind clients use of our technology, and to date the purposes are universally issues of public safety: Universities, public school districts, sports stadiums, shopping malls, and so on are all highly concerned with public safety and that is the main driver of the adoption of FR.

Keep in mind, FR is not rocket science. (Hell, rocket science is not "rocket science".) It is going to continue to be developed, it is going to be ubiquitous, and the ethics of those in the industry largely define the ethics of the industry itself. If people of good conscious are not in the industry, no ethical concerns will be raised when ethically debatable clients and applications arise. I am part of the good ethics contingent.