I've only read the first two stories, but I'm struggling to see how they reflect badly on Greenwald. The context does not change the meaning in either context.

This is not the right place for this discussion, but in both cases the accusations in the pieces retweeted by Greenwald (Harris as 1. a bigoted "scientific racist", 2. a "genocidal fascist maniac") are not supported when Harris' quotes are seen in context.

Greenwald's condemnation of The Guardian's summary of Assange's interview seems accurate. But Greenwald's assessment of Harris, and his tweets in that matter, seem very biased.