Your return ticket is on the airlines database. One swipe of your Passport and they will know exactly who you are. YES, you can do it at Mexico City, at the ticket counter.
If it makes you feel better just jot down the Conformation Number, the one they E -Mailed to you.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.