That's what the demon looks like when they're not in the host. That is what you need to run from if you see it coming. Especially without the right protection on.
The government doesn't even know they exist. They're not really paying attention to what really goes on. If they were, me and my brother wouldn't be legally dead. We'd be getting paid for what we do. We wouldn't be known to the world as murdering lunatics.
The government, and most of the world in general, remains oblivious.