I think for the most part, yes it has. But I will compare this to 9/11. Remember those 2-3 weeks after the tragedy? We were awesome and friendly and nice to each other because we knew how we were all feeling whether we lost someone or not. But 3-4 weeks later, we went back to our normal "The light is green! Move your f-in' car!" mentality. Sure, people are helping each other now, being nice, etc. It's wonderful. but enjoy it while it lasts. Because it won't.