Gosh, they've got to start pulling these wacky Planet X threads.
Obviously, every reputable astronomer on the planet has joined NASA in this giant cover-up, along with a good many amateurs, and this has been going on for decades. It's stupid, that's S-T-U-P-I-D, to assume that only NASA and a few conspiracy theorists would know about this if were true.
For the real story on this mendacious hoax, see the Planet X FAQ at Phil Plait's Bad Astronomy.