as you enter the Checkpoint, the door is closed, and the Security Officer that is behind the glass watches you. His badge reads ESF, which stands for the "Equestrian Security Force". If you are a doppelganger, you better hope you know everything about the pony that you're imitating, or you'll be caught, and fail. If you aren't a doppelganger, and are the real deal, then you should have nothing to worry about. Ahem. Name please?