Have you heard about the "new" CDC surveillance system used for tracking new HIV infections? Did you notice that the infection rate is considerably higher than originally reported? Our Bodies, Our Blog has an overview of the CDC's revised HIV infection estimates.

I'm not talking about onanism, but rather the idea that to protect women from sexual harassment and assault, we should just keep the sexes separate. Last week an article about a new single-sex bus service offered in Mexico City caught my attention.