@ChrisPirillo I think perv glasses must be regulated like surveillance cameras, which generally have to be visible, sometimes including signage, and are not allowed to film people where they may have a reasonable expectation of privacy. This regulation predates smartphones but still works for public areas; there's a distinct difference between having to hold up a device in plain sight & record periodically vs. constant, surreptitious recording (how far away can you see a tiny LED?)...