I was in the Enchantments a couple years ago and goats walked within a few feet of us, I had to shoo it away, didn't seem aggressive though.
Last summer I hiked from Hurricane Ridge to Mt. Angeles. There was a warning sign about aggressive goats. I didn't see any. I think that was a warning about the goat that eventually killed someone.
I don't know the full story, but if there was an aggressive goat, maybe they should have done more than just put a warning sign up.
If NASA knew that a metoer was going to strike a specific location, and all they did was put a warning sign up rather than evacuating people, maybe that would be reasonable to sue them.