It's pretty telling how narrow their definition of "all sides" is when Huffington Post and The New Yorker make up the furthest left of their spectrum. This in a world where the World Socialist Web Site (WSWS.org) and It's Going Down News (@IGD_News) are but a click away.

Are you saying they lean right, or just need more extreme examples? I don't see Breitbart on there, either, FWIW.

Maybe they're applying a "not too far left or right" filter or a "popularity" filter in order to keep from having so many takes on a given story that it's overwhelming?

I was more thinking of the lack of international diversity on international stories.