What Are North and South Korea’s Propaganda Loudspeakers?

Walk around Seoul and the chances are you’ll hear catchy K-pop tunes playing out of various shops, bars and restaurants. But did you know that North Korean soldiers may be humming along to the same songs in the Demilitarized Zone (DMZ) — the inter-Korean frontier, also known as the most heavily fortified border on earth? Since 1962, South Korea has been ‘shouting’ at North Korea with towers of multiple loudspeakers like this [https://www.google.co.kr/search?biw=1529&bih=1259&tbm=isch&sa=1&ei=fT