Historian Maurice Isserman’s new book: Reds: The Tragedy of American Communism helps us think about how the organized left ought to be organized. We talk about the past’s relevance to the present; Maurice, like us, is an activist, vitally concerned with building a Left that’s democratic and effective. The episode ends with the voice of Swedish singer-songwriter Molly Nilssen. It’s a track on her just released CD, Unamerican Activiities. The track is called “American Communist Party”