I know atheists would say it was just some random anomoly that Christopher Hitchens died of cancer, but I find meaning behind it. What lies between sin and death is sickness. One thing I noticed is when Hitchens is in group settings, and I am sure when he is alone too, he is constantly touching his mouth with his hands. Could he have transmitted anything? Even if he didn't I find it not a coincidence that he was so vocal in his faith for atheism and the type of cancer he got prevented him from using his voice.

http://en.wikipedia.org/wiki/Christopher_Hitchens