In your example for (A), you've unnecessarily used a controversial item in comparison to information/tool that is publicly available and cannot be used to do harm beyond holding individuals accountable, which for law enforcement, needs to be doubly more so.

A more comparable example for (A) would've been something like the location of a police station, which of course needs to be public, and publicly available and announced.

But an article about how guns are used and that they exist is not the same as selling them. I can see the argument that you should not even report on them because it makes them more popular, but at least in the US, guns are pretty permeated through society