Public health officials, parents at odds over HPV vaccine

Vaccination against a sexually transmitted virus that can cause cervical cancer may become mandatory for girls in Minnesota. Midmorning explores the issues behind the human papilloma virus vaccine.

Karen Clark: Minnesota state representative, DFL-Minneapolis. She is chair of the Public Health Finance Committee and was a registered nurse.

Erin Murphy: Minnesota state representative, DFL-St. Paul. She's a member of the Health and Human Services committee and was a registered nurse.

Arthur Allen: Former Associated Press correspondent who currently writes for Slate magazine's Medical Examiner column. He's the author of "Vaccine: The Controversial Story of Medicine's Greatest Lifesaver."