No, he denied having "spoken with, worked with, or provided any journalistic materials to the Independent."
Duncan Campbell has explicitly said that the information in question was in "documents revealed by Edward Snowden to journalists including Glenn Greenwald" and implies that the Guardian opted to not release the information as part of the deal with the UK government[1].
Duncan Campbell has explicitly said that the information in question was in "documents revealed by Edward Snowden to journalists including Glenn Greenwald" and implies that the Guardian opted to not release the information as part of the deal with the UK government[1].
1: http://www.theregister.co.uk/2014/06/03/revealed_beyond_top_...