I already carry extra insurance for my collection with a special rider on my homeowner's insurance, but I'm sure they're talking about liability insurance for non-defense use of arms.
I don't know...there may be some merit in choosing to take on extra liability insurance "just in case", but I'm not onboard with forcing people to do so because it feels good to some people.
Most insurance that I've heard of, will not cover you if you are a murderer.
Doesn't the "concealed carry insurance" just cover lawyer fees? Not payouts to victims and medical costs if convicted?
Auto and home insurance exempt themselves from paying out if it is murder and the policy holder is the murderer.