Well, now I'm leaning towards gaslighting and agenda pushing. I read this morning that they claim the "threat" came from the Three Percenters ("but we can't go into more detail because of security"), so fake news. That's not what the Three Percenters do.
If they wanted to make it sound more credible, they should have picked some wacko group, but I guess that thanks to the MSM, Three Percenters are more well known as a "militia".