Re: EMA - puzzling
"Semaphore code using brightly coloured grass skirts signalling arm and body movements."
Lost in the horizon due to the distances between islands, unless you're of the Flat Earth cult who honestly believe that's the opposing beach you see across the miles of ocean between islands.
As for radio, one good typhoon or volcanic eruption will knock out all the power to the radio transmitters (including the backups).
Biting the hand that feeds IT
