Says the Guardian[0]: "Tany Lokshina has confirmed that the US embassy called her before the meeting to ask her to pass on to Snowden the message that he was not a whistleblower."
So forget about Wikileaks. It's either Human Rights Watch's Tany Lokshina lying, or the US Ambassador.
[0]: http://www.guardian.co.uk/world/2013/jul/12/edward-snowden-t...