Fat, Thin, What?

Where is America right now on the fat/thin axis? Everyone's getting fatter, I know, but are we still worshipping the 13-year-old anorexic look in our advertising and modeling? It looks like it, based on Diet Dr. Pepper's decision to hire Nicole Richie to promote its product. I guess the promo is considered humorous, but there's nothing humorous about the picture of Richie here.