I never really understood this argument. It is true that _just_ knowing isn't enough, but, you're pretty limited in what you can do if you don't know. I guess

I never really understood this argument. It is true that _just_ knowing isn't enough, but, you're pretty limited in what you can do if you don't know. I guess my case falls apart when it comes to law enforcement. They don't know the law yet they're enforcing it.