But surely to keep this myth alive, any nation capable of space travel, or long haul flight, must be involved.
Richard Branson circumvented the globe, either he is a complete fool (his business acumen says differently), or he is in on it?
I seriously doubt your case (i.e. Flat Earth), but I am happy to be proved wrong, so show me some proof! Don't assume we are all here just to mindlessly argue, although that is fun, I have an open mind, but no one is saying anything intelligent to help their cause.