Interesting Editing Exercise

The editing of Letters to the Editor of The Herald reveal the bias of the paper quite obviously.
On the 21st a "brevity" was published that read: "When will the intense scrutiny of the funding of N.Z.First be extended to that of National and Labour?"
The full, unpublished, submitted letter read:

Sir:
Today on Morning Report Rodney Hide said the object of the present inquiry was to get rid of Winston Peters, after which we would have stable government. So much for disinterested concern for democracy.
When will the intense scrutiny of the funding of N.Z.First be extended to that of National and Labour? Who remembers the Exclusive Brethern?

Which now puts a different meaning to the letter - an opinion that,dare one argue it, is contrary to the admitted agenda of the Herald.