She's judged by a different standard

For those who have been in a cave all week, Sarah Palin accidentally referred to North Korea as an American ally on the Glenn Beck show this week. Unchastened by their humiliation at the hands of Christine O'Donnell (whom they accused of gaffing when she said it was time to party like 1773, and then discovered that was the year of The Tea Party), the Leftist media has gone after Palin with a