They would have to find out somehow, I mean they would wonder "Where the hell are our satellites?" Plus, you stated that this was a conspiracy by the world governments. Lastly, who is in charge of the ice wall guards? An elected official would probably want to know why he isn't in charge of anything. Besides, all of the wars are just cover up, so the Iraq war would be included in this, as would the beef with Iran in North Korea.
Any information anyone has given you regarding the conspiracy is pure speculation. No one knows why there is a conspiracy, no one knows who is in on the conspiracy. No one knows what would be gained from a conspiracy. Yet the fact remains that if Earth is flat there is a conspiracy.
Over and over again, as we ask you people why you can't take a trip to the ice wall, you say that the government would kill us.
FE's say they will not take a trip to the ice wall for the same reasons you say you will not take a trip to Antarctica, it has little to nothing to do with fear of being killed by ice wall guards..
I won't go to Antarctica because at least 6 billion people agree with me when I say that the earth is round. However, FE's are one of only hundreds on Earth that believe that it is flat.
If the Earth is flat, then there is a conspiracy.
Let's look at it's contrapositive:
If there is not a conspiracy, then the Earth is not flat.
And since there is a very very small likelihood that we went through 1000 years without any sort of break-up or leak in this conspiracy, there must not be a conspiracy. Therefore, there is not a flat Earth.