Introducing the new season of “Still Processing.” The first episode is the one that the co-hosts Jenna Wortham and Wesley Morris have been wanting to make for years. They’re talking about the N-word. It’s both unspeakable and ubiquitous. A weapon of hate and a badge of belonging. After centuries of evolution, it’s everywhere — art, politics, everyday banter — and it can’t be ignored. So they’re grappling with their complicated feelings about this word. Find more episodes of “Still Processing” here: nytimes.com/stillprocessing