I have a number of people call me up and ask what I thought about Fukushima reactor and what it mean to people in Hawaii and California.  ‘Why are you asking me?”  “Hey you have a Ph.D. and worked at NASA right?”  Sigh.. I don’t know much more then anyone else about radiation, but I do follow the news like an addict and based on what I’ve heard (from the lets get people panic) news sources, we are fine.  However, here is a great chart from Randell Munroe of XKCD that does a really good job of putting this in perspective….

… and his source here….