cnn: "disturbing" images from n korea?

i don't know what's going on with cnn.

on i think 3 consecutive days they've run a short video clip of what's said to be a public execution of 3 men in north korea.

before it starts we get warned it might be "disturbing."

after it starts a voiceover says the men's crime was "making contact with the outside world."

(that sounded strange, because not too long ago i saw a tv report about south koreans visiting relatives in the north for the first time.)

then words appeared onscreen saying the men had trafficked women across the border into china.

that's "making contact with the outside world"?

if there was an execution, you couldn't prove it by me. i saw some tiny images so far from the camera that i had no idea what was happening, let alone what was so "disturbing."