Well I took all of your sage advise and traveling was a breeze. I brought plastic needles, no scizzors. I had it in my briefcase and no one even looked. Not at the airport in Houston, Mexico City, or Queretaro - security or customs.
Thanks for all the great advice.
I overcame my fear and knit on the plane and no one beat me up. There was an elderly man next to me and he just stared and didn't say anything. I'm looking forward to more travels and working on projects - it certainly passed the time.
I went to the concierge in the hotel in Mexico City and asked them to find me a yarn shop. I figured there would be some really great wools locally or from Uruguay that would be cheap. They actually found me a store a 10 minute walk from the hotel.
Unfortunately they didn't have any local wools. Imagine my horror when I found they had Lion Brand Acrylic! Oh no. But they did have some other nice wools so I did buy some - the prices were pretty good. I hear you guys talking about Noro - they had 50 gram balls for about $10. Is that a good price? If so I will pick up some on my next trip.
Thanks again for all the advice. Now I'm a knitter on the go!