From the executive producer of the (rather good) new Battlestar Galactica , in response to the question as to why one of his characters (a doctor, no less) smokes:

“I’m also frankly tired of all the anti-smoking p.c. crap that we’re bombarded with these days and I decided that this was a world without all that. Call it my one sop to the idea of an idealized society, the notion that adults can make informed choices and not be nagged to death or run out of public spaces for making choices that others may not like or agree with.”

Via Room Twelve