This post by Megan McArdle was interesting for the context. I am certain that I will say something I regret sooner or later; it's probably a good thing not to be judged by hasty words.
But I also think it is important to remember that all quotes can be made to look bad out of context. In the "sound-bite" environment of the modern world it is already hard enough to discuss complex issues (*cough* education reform *cough*) without adding in misleading quotes.
It is just something to keep in mind . . .