This week’s report of a downed US pilot’s encounter with “jellyfish drones” in the skies over Iran set off a vigorous defense debate — and foreshadows future dangers. A source told CNN that the F-15 pilot described seeing “multiple drones interconnected and moving as one, with smaller drones below the bigger drones like legs” before the jet crashed near the Zagros Mountains. “Real alien sh-t,” as the pilot put it . But experts are divided about what exactly the pilot saw, and whether it