The problem is identifying who is unstable and will act. A post on a different forum is about a knife attack in china. It goes into knife control, not carrying a tool, not selling sharp or pointed knives. I am sure china can jail someone far easier than the US.
I am facing serious health concerns, and if certain things come to pass it is time to sell my guns. When I retrieve them from the safe should I be red flagged so I cannot have needed funds for myself and family? Just because I may be suicidal.