Doctors successfully separate twin girls conjoined at the head

Two-year-old conjoined twin sisters saw each other face-to-face for the first time after a successful 24-hour surgery to separate them. Ian Lee reports from the children's hospital in St. Louis, where it happened.

Two-year-old conjoined twin sisters saw each other face-to-face for the first time after a successful 24-hour surgery to separate them. Ian Lee reports from the children's hospital in St. Louis, where it happened.