Simple Scenario:
1) Myself and my family spending the better of Sat afternoon at Mall shopping.
2) An Armed man, or more just stepped in inside the Mall and Started Shooting at anyone moving.
3) I Retreat with my Family to inside a store and proceed to draw and seek cover.
4) In Middle of the shootout, I may have to confront and shoot back at the offenders, dropping at least one down the floor ;)
5) 10 mins later LEOs are on the scene and and started exchanging gunfire with shooters.
6) As a Arab, (Middle Eastern guy, a Caucasian) I am afraid I am of higher risk being shot by Mistake by LEOs.
7) My best chance is I detected the presence of the LEOs and holster or remove my pistol from sight. Or,
8) Just yell at the LEO, that I am CHLer. (in English

Regardless, this would not deter me from carrying.