Flight Delayed After Woman Brings Squirrel On Plane

This is INSANE! A lady was escorted off of a plane after bringing on an 'emotional support' squirrel. When flight staff asked her to leave the plane she refused so they had to remove all the passengers from the plane so that police could come on board and escort the woman and her furry friend off the plane.... now here is my question.... HOW DID SHE MAKE IT ALL THE WAY THROUGH TSA AND ONTO THE PLANE IN THE FIRST PLACE????????? See the lady being wheeled away below.