1. Foreign languages at school.
I think Chinese should be included as a school subject. It's a language that is spoken by over a billion of people. Maybe there're not many countries that spoke it, but China is suposed to be the first world power in the near future, so it will be an important language soon. The only problem is that Chinese is very dificult to learn for occidentals (by the alphabet, vocabulary, grammar).
I don't think that Latin or Esperanto would be important to study at school, even Arabic. This languages could be very nice, but not in business or commercial area.