Gov. Rick Perry's 2007 attempt to require that girls in Texas be vaccinated against the human papillomavirus, commonly known as HPV, has become a political hot potato. But Dr. Ronald DePinho, the new president of MD Anderson Cancer Center in Houston, says the vaccine is not just sound but "one of the great scientific advances in the history of medicine." In last night's GOP presidential debate, Perry faced repeated criticism from other candidates for his HPV push. Michele Bachmann said it was “flat out wrong” to require that “innocent little 12-year-old girls be forced to have a government injection through...