It's easy to dismiss New York City Mayor Bloomberg's latest nanny state hiccup as the control-freak antics of a powerful man --but that would be missing the point. Bloomberg did not come up with the idea of banning sodas during a spa session on his private island. His implementation of it may be more overtly obnoxious, but the idea that there is a national health crisis that can only be solved by getting people to stop eating sugary foods, is ubiquitous among social policy wonks and national experts on telling people what to do.