My dad was on an ORD-DEN flight a few years ago in the winter and was listening to channel 9. They were doing go-arounds for awhile because of limited runway operations because of snow. While on final approach, the captain aborted the landing, did a go-around, and made a comment to ATC along the lines of "Next time, if you could get the snow plow off the runway..." and subsequently channel 9 was shut off.