Recently used in major sports venues this technology has been widely criticized:  It has quietly expanded into new areas such as the U.S. Open golf tournament and for concerts at Madison Square Garden: In other words, it's no longer confined to airports, border checkpoints or maximum-security areas.  

Grounds for criticism include a lack of informed consent, no transparency, ethical issues as it invades privacy, while targeting and discriminating citizens. 

Further, when it comes to facial recognition and other biometric surveillance technology, laws are lacking, as there are serious threats to privacy and civil liberties. Great concerns from New York State Bar Association lawyers have been expressed…