Because it's an arms race situation. The industry of de-identification has a long history in fact. It is typical for many types of criminals to employ hard-to

Because it's an arms race situation. The industry of de-identification has a long history in fact. It is typical for many types of criminals to employ hard-to-identify outfit and appearance. The work of investigators is to overcome this hardship and identify the criminal. The co-evolution of methods on both sides will never end.