Much obliged.
I guess this chin-stroking conjecture is all you need as “reasonable suspicion that a person subjected to the frisk is armed, and therefore dangerous” these days: “A passenger’s motivation to use violence during the stop to prevent apprehension for a crime more grave than a traffic violation is just as great as that of the driver.”
So it’s “reasonable” to assume, every single time, in any circumstance, that any passenger is going to whip out the .45 because you were going 31 in a 25 zone when school let out. Hands on the trunk where I can see ‘em, Mom!
And that is becoming more likely what will happen - more than it does already.