You would have to do a very good job to convince me of something as false as the flat earth theory. My cousin is Eric Boe, a BASA Astronaut, and a former fighter and test pilot. Let me tell you, if he's part of the conspiracy and he's lying about ever being in orbit, he would have to be the greatest pathological liar ever known, with the dozens of hours of stories he's brought back from his job, it would be the most perfectly spun web of lies ever, without a single inconsistency or contradiction.
About 15 years ago, while he was a test pilot stationed at Lackland Air Force Base, he and his friend offered me (actually convinced me, more-or-less) a free ride in a Lockheed U-2 at 70,000 feet. After a tedious hour of putting the "space suit" on, and a 20 minute eardrum shattering climb, we reached cruising altitude at 70,000 feet and a minute later peaked at 71,200 feet!!

Now, not that I personally would need this as proof that that earth is round, and I know you flat earth conspiracy theorists will either deny my claims or try to explain it away, but after passing 55,000 feet altitude, the earth's curvature becomes obvious. You can clearly tell that you are staring down at a small portion of a huge spherical object!
Just a couple more questions for you...What about other space agencies around the world? Are they part of the conspiracy too?
What about the Moon, and other celestial bodies in our solar system, are they also flat?
Also, If the earth isn't a spinning sphere, what other than the Coriolis effect can possibly give our weather systems their spin?
Also, if anyone has circumnavigated the Antarctic coast, they would have been able to disprove this theory after finding out it took them only 10,000 miles to do so, instead of the 40,000+ miles it would take according to your theory and your flat earth map. I would assume Antarctica has been circumnavigated before, and I'm sure you will never find any instance anywhere, where it took anyone near 40,000 miles to circumnavigate the Antarctic coast.
Thanks,
Jason