World +dog detection systems
"JPALS, by contrast, is a GPS-based system. Rather than the ship broadcasting a glideslope to world+dog, JPALS emits an encrypted burst of data that allows the approaching aircraft to precisely fix the ship's position and make a safe landing"
I'm fairly sure that the subset of world+dog that want to and could do anything about a ajrcraft carrier would already be aware if its presence. Probably from the news.