By Sarah Robson and 3 News online staff
The so-called "moment of truth" is upon us.
Internet Party founder Kim Dotcom has been talking up his bombshell revelation – which comes just five days out from the election - for months.
He says he has proof Prime Minister John Key lied to New Zealanders and voters should know about it before they go to the polls.
Dotcom is holding a public meeting in Auckland tonight to present his evidence and he'll be helped by American journalist Glenn Greenwald, WikiLeaks founder Julian Assange and international human rights lawyer Robert Amsterdam.
Mr Key this morning said there is a possibility that Mr Greenwald will claim that New Zealand has been spying on its trade partners – including China – though he refused to comment on whether that was the case or not.
"Let's just wait and see what he comes up with," Mr Key told Newstalk ZB.
The Prime Minister denied there would major diplomatic problems if it was shown New Zealand has been spying on China.
Mr Greenwald told media over the weekend that US National Security Agency documents obtained by Edward Snowden show the GCSB has engaged in widespread domestic spying and he'll reveal more details about it at the meeting.
But Mr Key strongly denies that the GCSB has carried out mass surveillance of New Zealanders.
He says the Government knows what documents Mr Snowden has had access to and that Mr Greenwald is referring to a proposed widespread cyber protection programme that never got off the ground.
Mr Key says he will declassify and release documents that will prove Mr Greenwald's claims are wrong, but only after the journalist has released his information.
"It's incumbent on them to release those documents, but when they do we'll counter it," Mr Key told reporters in Auckland on Sunday.
"We are absolutely rock solid in our position."
Speaking to Radio New Zealand this morning Mr Greenwald said the Prime Minister's claim that he was only "considering" a surveillance programme was "absolutely false".
"They did far more than merely consider it," he said.
"They took active steps to implement it. They were working with the NSA."
Labour leader David Cunliffe says he doesn't know if his diary will allow him to watch the livestream of Dotcom's event.
He says Dotcom should put whatever he's got into the public domain, then Mr Key should answer questions about it quickly and fully.
"Then let's move on with the rest of the campaign," Mr Cunliffe said.
"I do not want to spend the whole of this next week talking about the GCSB because there are a lot of other things that matter to New Zealanders."
NZN / 3 News
source: newshub archive