Actually it doesn't. They are doing nothing different than normal, and haven't attacked yet. It's a practice defensive drill designed to retaliate should NK attack. Same drill as always.
And honestly, Fox at least had info and quotes from the AP.
My guess is the reason none of the others mentioned the pacifist demonstration is that it also happens EVERY YEAR.
"I would rather be exposed to the inconveniences attending too much liberty than to those attending too small a degree of it." Thomas Jefferson