Lets cut the OP some slack here. Before a knee jerk reaction as in I have UA flights cancelled, etc.

I'd like to here more.

To the original poster. People here wnat to be helpful, may not seem that way from some responses, but can only do so with more information to ponder and review.

I think we have all experienced "suspect" cancelations in our many years of flying as well as "suspect" wetaher delays. I am curious as to what clues you have about NW's behavior in this instance.

Unpleasant and unhelpful GA's are not acceptable under any circumstances...