As we can see here in the comments, people understand it as security. But it is only a method for identification.
It cannot tell you who carries the knife. Even if it’s connected to the databases of three letter agencies (or worse), it can only produce suspicion. Which is false, most times, and helps only the ones who sell surveillance tech.
And even for identification it is less reliable than people like to think.
It is giving false ideas.
As we can see here in the comments, people understand it as security. But it is only a method for identification.
It cannot tell you who carries the knife. Even if it’s connected to the databases of three letter agencies (or worse), it can only produce suspicion. Which is false, most times, and helps only the ones who sell surveillance tech.
And even for identification it is less reliable than people like to think.