http://rt.com/news/270121-church-facial-recognition-software/
Churches are joining the widening club of entities using Big Brother-style facial recognition software to track people. And they are doing so in secret, according to a producer of a specialized program designed for religious institutions.
Churchix uses CCTV footage or photos to match churchgoers against a database of high-resolution pictures that a church has to compile on its own. The software can be used to monitor attendance numbers, and alert church officials if some members stops coming to services. It can also screen for people banned from the church, Greenshpan explained.