Over the course of its record-breaking 15 seasons, ABC's 'Grey's Anatomy' has never shied away from tough subjects. When a recent script included a scene of a patient undergoing a rape kit exam, the network wanted some changes. 'Grey's Anatomy' showrunner Krista Vernoff and writer Elisabeth Finch tell us how, with an assist from Shonda Rhimes, they got their powerful episode about consent to air as written.