When I was stationed in South Korea in 1967-69, we were told the same thing.
I would not be so quick to judge the ChiComs. They may be ruthless and they may practice slave labor. However, they execute corrupt officials in China. Plus, these incidents, such as the "distress message" in the Halloween decorations and the latest incident with Japan sound suspiciously like an attempt to provoke a war with China (probably because of BRICS).