On December 16, 2011, the GCSB began its illegal surveillance of Kim Dotcom.
Neither the Prime Minister, nor the incoming GCSB head Ian Fletcher, were told about it.
But tonight Campbell Live can reveal that Mr Fletcher had taken leave from his job in Queensland, Australia, to be in Wellington that week, and that he and the Prime Minister met the GCSB that same week.
Mr Key and Mr Fletcher had a secret meeting that has never previously been revealed, despite all the requests for details of when the pair had met during the year of Mr Fletcher's somewhat controversial appointment to the job.
With another invitation for Mr Key to Washington, and as more is learnt about the GCSB and Five Eyes, we are beginning to see how the organisation, and New Zealand's relationship with the US, has changed.
Watch John Campbell's full investigation.