Most of the casualties were not created by the bombs. It was the shooters.
Still only a slight advantage.
Yes helpful and far better than a handful of nothing.
Have you ever fired a handgun in a stressful situation?
Have you ever been shot at and returned fire?
Every fiber in your body is cranked to max, you are moving on instinct and training, if you move at all.
Sight Alignment, sight picture,triggercontrol, breathing... mostly out the window.
Well trained troops, respond with maybe 50%; Joe Citizen,who does not recall his last major hit of adrenaline;not so much.
Yes I do believe that concealed carry is a good thing.
Just not anything like you see on TV.
If you are a shooter try this, go for a nice long run, warm up then, max it out the last mile or so to get everything pumping. At this point I put my hands in cold water and towel off, salty sweat;not good.
Try a few targets.
With each heartbeat you move a mile, and no one is shooting at you.
I have a 47 ft range in my basement, less for prone.