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Though, to point out the obvious, Palin doesn't "differ" on the right to privacy. She just had no idea that Roe v. Wade involved the question of such a right. All she knew about the case was "Abortion! Hissssss..." I doubt she's ever even read it.
("Though she probably read about it in the newspaper." "Which newspaper, Johnny?" "All of them!")
So does she agree with Griswold? Nah. If she's heard of that case, she probably thinks it's about National Lampoon's Vacation.