The particular journalistic activities that the US is currently trying to extradite Assange for is encouraging a source to give him more documents and conspiracy to help Manning hide her identity so that she would not be persecuted for her heroic act of whistleblowing. In other words, Assange was attempting to make sure Manning’s leaks had enough impact to justify the risk, and also to try and make sure she wasn’t caught and tortured for it.
As Glenn Greenwald has pointed out on Twitter, the indictment describes an activity that all investigative journalists partake in all the time.
Phi Beta Iota: We have no direct knowledge but on balance we consider WikiLeaks a useful public service and the manner in which Assange has been treated to be reprehensible. Somewhere in here, truth will out.