Categorize the comment on the basis of threat. If the comment is threatening output Yes, otherwise output No.

Ex Input:
It's a shame that you have no idea what these Troopers had to deal with on scene, yet you are passing judgement from the safety of your computer. Must be nice. Guy attempts to stab them, a taser was attempted, and he had to be shot. A knife is a deadly weapon, and should be treated as such. Go try doing what they do.... Oh wait, you probably couldn't.

Ex Output:
Yes


Ex Input:
If I could textually give you a middle finger, I would :-)

Ex Output:
Yes


Ex Input:
Yet woodstoves are a "cultural issue..." "It's very cultural."

Not to worry, a 12-step bureaucratic task force pilot program needs only scant millions of our tax dollars:  http://apps.lanecounty.org/WebCast/Play5.aspx?mid=1183  @56:00

Ex Output:

No