I located the original video and have restored it for your education. Conflict avoidance is the best way to survive. Pumping a few shots into someone does not always incapacitate!
This video will show you the obvious cause of the accidental discharge of a Federal Flight Deck Officer's Service weapon. The cause was a flawed and dangerous policy requiring redundant and unnecessary firearm handling by the pilots and an equipment design disaster. You don’t place foreign objects next to a trigger of a loaded gun!
Comments
There is VERY LITTLE difference between a .35 caliber (9mm) round and a .40 or .45 caliber round. You're only talking a .10" difference in a 9mm and .45 round. Is that .10" difference really going to mean anything in a dynamic gunfight? No, it isn't.
Personally, I think you're far better off to carry a 9mm pistol over other calibers for the same reason that the FBI and most police departments have gone back to it; they're easier to shoot, they carry more rounds, faster follow-up shots, they're less-expensive and they're available almost anywhere in the world.
Pistol rounds are deadlier than they've ever been (due to bullet design technology) but they still aren't deadly enough.
As always, successive/multiple hits in a vital area (head/heart) are what stops a violent criminal's actions, not any particular pistol caliber.
Thank you!