People routinely - well, at least every few months - shoot up US schools. They are radicalized online. There is a common pattern to the radicalization. However, it's ""forbidden"" to point that out or suggest restricting the supply of firearms to internal enemies of the US in any way.

Americans don't need any encouragement from foreign powers to do that. Congress has seen fit to keep letting it happen by pointing to ancient scripture about the right to develop one's own organized militia....