Originally Posted by
civicmon
The US is the glaring exception to this but most of the time, one does not require even a transit visa if not leaving the airport. Even citizens who need visas to Schengen countries (for example) sometimes do not need transit visas, such as South African citiznes, but others (mostly the poorest of the poor countries out there) do.
I am not sure which part of my post you disagree with.