The right to express your thoughts, without the government attacking.
The right to keep your thoughts to yourself.
I'm sure Glenn Reynolds, former libertarian, will tell us we're all over-reacting with our failure to heh & indeed over such things. Privacy, is SOOOOOOOOOOOOOOOO overrated. And you have to trust him, after all, he's a former libertarian.
*Bush loved "New Coke" by the way...but then again he loves coke in all its forms**
** There has been some unfortunate confusion involving straw placement.