Take a look at this chart:
Note weapons acquisition,knowledge acquisition,material acquisition,eliciting information.
These are foundational pieces of being labeled a terrorist.
While we all know that we are not doing terrorist things,however,note :
if someone was an avid,camper,survivalist,prepper,knowledge hound ,scientist etc. Could initially be in the pool for terrorism.
A overzealous someone,in a minority community or not could be intentionally disastrous to whoever the cannon is pointed at.
This is a slippery slope of thought( in one person’s opinion) DHS and the Bureau have other indicators and means of determination.
This chart is presented by a state LEO organization. (DHS chart)
With red flag laws and other issues,it seems one must be inordinately careful,because even gaining information can get you in trouble if coupled with being a weapons owner