I'd add two points:
1) Someone earlier said "NEVER say you shot to kill in court...". I never read anything in this thread where someone suggested they might do that. We don;t expect people to go jumping up and down in court shouting "kill! kill! kill!", however, if a person is considering a firearm for self defense, let's be honest about what a firearm is for and what it can do.... let's not be squeamish.

2) I think it's good to argue the stopping power of certain calibers but, in the end, generally speaking, the larger caliber bullets will accomplish the mission most effectively. To say there are exceptions is one thing, but again when more stopping power is desired, a large caliber is selected. There is too much empirical evidence provided by way too many law enforcement agencies to effectively argue otherwise.