Public school jobs are a safe thing?

So you've heard that hagwons in Korea are kind of sketchy and that you'll probably get ripped off.  You look to public schools, hoping for some stability. Well, perhaps you should think again.  It seems like every year, there is a story out about how school boards cut their funding for NET's at the last minute, leaving hundreds of foreign teachers in the lurch.  This time, it's GEPIK.