Precisely why we work to normalize the every day perception of OCing.
The article relies on negative "buzz words" that are designed to inflame the reader and does not raise a valid question, but is pushing an anti agenda.
Indeed how does one tell the difference between a criminal intent on wrecking havoc and a legal, good citizen carrying for his/her personal self defense? Answer: By their observed demeanor and actions.
Carrying concealed changes nothing regarding the perceived safety of others. Such merely moves it to the realm of "out of sight, out of mind."