Here. The paper is Coordinated Punishment of Defectors Sustains Cooperation and Can Proliferate When Rare. The blog post highlighted is Punishing Cheaters Promotes the Evolution of Cooperation. It is probably obvious that I'm not on the internet as much right now. But I've been thinking on the topic of this paper for a few days, and plan on putting together a post when I have something interesting to say, and nothing interesting to do off-net. P.S. We decided to bring Kevin Zelnio back on.