In communities like HN there is always been a belief that compromising privacy is not actually required to keep people safe. Whilst I generally agree with this,

In communities like HN there is always been a belief that compromising privacy is not actually required to keep people safe. Whilst I generally agree with this, I don't think it is set in stone. The threat could evolve to the point where this kind of tech is the only realistic method of detection at scale. That would be a scary world to live in. We would loose our privacy and eventually our security as attackers evolve. This could happen, but probably won't because terrorists are still very limited in numbers and talent.