So I have a 13 hr stopover, but I don't want the free hotel they are offering and would rather stay at the airport and wait for my connecting flight. Do I still have to go through the immigration hassle if I stay in terminal 3 until it's time for my connecting flight? Do I still have to hand over my US passport to security within terminal 3 if I don't leave the airport? What is the process like if you just wait at the airport?
Thanks.