I picked up my plane ticket to Tibet today. They also showed me a photocopy of the TTB permit, but I wasn't allowed a copy. The driver will present it to the check-in officer when I'm at the airport. It's a bit secretive really and wonder if you can get away without a permit. Nonetheless, I'm looking forward to Tibet. The flight leaves at 8am and takes approximately 2 hours to get there, which is less stressful than enduring an almost 2 day train ride there.
