I remember reading an article by him about the Mali conflict a few years ago where it was so obvious he didn't know shit about what was happening there and was just using it to say West is Bad. It was rather supportive of the pre-ISIS that had taken over northern Mali and led me to believe his MO as a journalist is to start with his contrarian agenda and then look for ways to turn any event into supporting evidence (with rhetoric more than facts), more so than other journalists

Many on the left operate with "The US is to blame for all the world's problems" as their main worldview. Everything they report on is filtered through this prism.

Greenwald is the de facto leader of this movement.

The NY Times exposed far more than Greenwald did. James Risen went to court to protect his sources in multiple occasions. And Risen works with a team and has the full support of his editors and employer. Greenwald is a journalistic berserker. He swings wildly and occasionally hits a target others can't get to. Really though it is my opinion based on observation.