Rape victim with pacemaker pushed to the floor, dragged, handcuffed and arrested for refusing TSA pat down

Story and video is here.

TSA pat downs may be a necessity, but why did they manhandle this woman, and why did they arrest her? If she refused the pat down, they could have simply denied her entry onto the plane. Was she trying to force herself onto the plane that they felt the need to arrest her? Who Knows.