DAVE ZIRIN: I just feel so strongly that this is one of those moments where we need to come together in true empathy, look at Boston, look at Baghdad, look at Mogadishu, look at Yemen, and ask ourselves the question: Is this the kind of world we really want to live in? When we’re together in collective space, we should feel empowered, not frightened. And I hope we take forward the idea of enforcing the idea that coming together collectively is a beautiful thing and one we should treasure. More here.