Thanks (and to parent comment); I did not know this is how it worked.

So then this appears to be the difference between the Manning/Assange and Snowden/Greenwald cases: both Manning and Snowden held security clearances and violated them by sharing with Assange and Greenwald. But while Assange may have solicited and/or assisted Manning's crime, Greenwald just passively received the materials from Snowden's crime. So Greenwald is innocent and Assange is prosecuted.