I’d be curious of what kind of knives are we talking about, but it isn’t unreasonable that some more regulations are needed there too. But I was trained as an engineer and you are taught to tackle the largest problem. Since 2/3rd of the murders are committed by firearms and about 10% are committed by knives, I would put my energy towards firearms first. Bad engineers would try to tackle knives or get confused about which is more important.
As far as insurance goes, as far as I’m concerned, I have a right to my property and my life. I see no reason why someone else exercising what their right to bear arms takes away from my right to property, but without insurance being in place, that is exactly what is happening. The costs of the Las Vegas tragedy, which will go on for the rest of my life and well after my death will be on me as a taxpayer and my children and possibly my grandchildren. It’s time that gun owners take responsibility for their ownership instead of passing it onto society at large.