@realjohnboy,
No, way out here in the rice paddies, nobody pays attention to tha sort of thing. That's fer them big-city folk.
I was talking to my gf on the phone at the time. She was in Seoul. When I got around to asking her what she was doing, she just casually replied, '아, 민방위중이다': 'Ah, in the middle of a civil defense drill. No biggie to her. There are smaller versions of that several times a year.
Again, that's for city folk. Out here, farmer Kim ain't gonna get off his tractor for that crap.