If the resignation of Peter Dunne has left a bad smell around Parliament, then it is the stench of red herrings rotting in rather large quantity.
That was painfully apparent during yesterday's urgent debate on Dunne's departure from John Key's ministry. The argument seemed to be driven on all sides by two time-honoured political methodologies: obfuscate and exaggerate.
Thus National MPs drew unwarranted comparisons between the leaking of the Kitteridge report on the GCSB, Phil Goff's use of leaked documents to embarrass the Government with regard to budget cuts at the Ministry of Foreign Affairs, and, for good measure but rather puzzlingly, the public exposure of David Shearer's "secret" New York bank account.
The Prime Minister continued his warnings that Labour's insistence that he get to the bottom of who leaked the Kitteridge report could set an ugly precedent in terms of emails exchanged between journalists and politicians becoming public property.
That warning ignored the fact that all emails sent and received by ministers are already discoverable under the Official Information Act unless there is a reason for withholding them.