Information about the project was contained in 50,000 GCHQ documents that Mr. Snowden downloaded during 2012.
Many of them came from an internal Wikipedia-style information site called GC-Wiki.
Unlike the public Wikipedia, GCHQ's wiki was generally classified Top Secret or above.
The paper had details of the highly controversial and secret programme for over a month.
But it only published information on the scheme - which involved paying the companies to tap into fibre-optic cables entering Britain - after the allegations appeared in the German newspaper Suddeutsche Zeitung.
I have never spoken with, worked with, or provided any journalistic materials to the Independent.
The journalists I have worked with have, at my request, been judicious and careful in ensuring that the only things disclosed are what the public should know but that does not place any person in danger.
People at all levels of society up to and including the President of the United States have recognized the contribution of these careful disclosures to a necessary public debate, and we are proud of this record.
It appears that the UK government is now seeking to create an appearance that the Guardian and Washington Post's disclosures are harmful, and they are doing so by intentionally leaking harmful information to The Independent and attributing it to others.
The UK government should explain the reasoning behind this decision to disclose information that, were it released by a private citizen, they would argue is a criminal act.
For the record: The Independent was not leaked or 'duped' into publishing today's front page story by the Government.