Oh, I dunno. They let Sharon live, and she was a Cylon. I can understand why Tory would want to keep it secret, but I don't get why Col. "Brass-Balls" Tigh didn't just go up to Adama and say, "Admiral, I think I'm a Cylon. You'd better put me into custody. Tyrol, Tory, and that basketball guy or whatever sport it is he plays, they're Cylons too. I'd really like to think that everything will be alright, but I consider you too good of a friend to risk hiding this for my own sake. Just, um, please don't space me."