Strangely, the article seems to say that a stop on an unrelated issue that captured a violent criminal was, to quote, "a disaster". But don't unrelated stops result in charges and convictions all the time?
I don't want to downplay individual security and privacy concerns, but the article is clearly biased. There are no examples of crimes being prevented, yet ti is clear that many are. Without a balanced picture, how can any reasonable person form a reasoned judgment?