Opposition calls are mounting for further investigations into illegal spying conducted by the GCSB in the Megaupload case.
Labour and New Zealand First are unhappy with findings released in the Neazor report saying that inquiry's scope was too narrow and leaves vital areas ignored.
Labour Leader David Shearer says a full and independent inquiry is needed into the affair.
"That will look into all of the above - what we need to know, give us confidence, and give New Zealand its reputation back in terms of its transparency and its integrity."
The Prime Minister's being accused of being derelict in his duties when it comes the the country's spy agencies.
New Zealand First leader Winston Peters says John Key has been too cavalier and not taken his ministerial responsibilities seriously.
"Prime Minister, fire yourself. That's how bad your performance has been."
Green co-leader Russel Norman says Mr Key has to be accountable for the actions of his departments.
"He sits here day after day in this house and tells us it's nothing to do with him. Well it has everything to do with him."
The Prime Minister says the bureau reviewed the operation in February.
"I've asked the bureau about why they've failed at that point to identify the problem. I'm not entirely sure I've had a completely satisfactory answer."
Photo: John Key (Getty Images)