Lethal? I think not.

Here is a fascinating "science" article regarding us carriers of the CF gene. For whatever reason, the mutation protects against TB.

Crazy huh?

The article is pretty harsh...talking about how CF is "lethal" and "kills".

Last I heard...there a lot worse things I can thinking of that are lethal and kill:
heroin
drug addictions
loaded guns
drunk drivers...

The list can go on and on...