The government is alleging that they have chat logs that show that Assange was colluding with Manning before and while Manning was acquiring the files, and advising him on how to get past some of the security measures.
So... the government is saying they have evidence of collusion?
Yeah, I think I heard that too... but no matter where Manning learned it from, he was still the one that obtained the documents and released them.
Anyone could have taught him how.
Manning should have been in front of a firing squad for causing deaths by his actions.