Director of National Intelligence James Clapper has admitted Edward Snowden shared fewer top secret NSA documents than previously estimated.
The US intelligence community now thinks that the former systems administrator gave only 200,000 documents to journalists and had "probably downloaded" up to 1.5 million documents more.
It has previously thought he had stolen 1.77 million.
However, it is still not clear what Snowden nicked. Officially the US government said the overwhelming majority of information Snowden took pertained to the US military capabilities. However other experts do not think it likely that Snowden "compromised the communications networks that make up the military's command and control system."
But it is certain that a huge chunk of documents are unaccounted for.
Snowden said that said he gave all of the classified documents he had obtained to journalists he met in Hong Kong, before flying to Moscow, and did not keep any copies. However Snowden told the South China Morning Post he had access to more documents to leak. However last month he said he destroyed information he was holding to prevent the Russians from getting it.