Apparently it is a structure that holds antennas to keep an aircraft centered on the runway. The antennas have to be there, but experts are saying that the stru

Apparently it is a structure that holds antennas to keep an aircraft centered on the runway. The antennas have to be there, but experts are saying that the structure supporting the antennas is way over engineered and even internal airport documents had raised concerns about it: https://www.pbs.org/newshour/show/south-korean-officials-were-worried-about-barrier-before-it-was-struck-by-jeju-air-flight https://www.pbs.org/newshour/show/south-korean-officials-wer...