Why Palins did this to herself?

http://www.nytimes.com/2008/09/26/us/politics/26watch.html?em
I saw Palin interview with Katie Koric, yes that Russian question?
Palin's asnwer was not polished; see I was not expecting a the truth but just a confident presentation. She stumbled, sorry I should not be that judgmental(being bad talker myself) , but a VP needs to be confident; does not matter whether the individual brain-dead(like Mr Bush :-)).

Sarah went speechless while describing how media made fun of her by saying 'Palin's foriegn policy experience comes from being next to Russia', and Palin could not get the word 'caricature' to describe the way media treated her, and then Katie helped her with word 'mock'. I do not understand why Palin is putting herself to this kind of humiliation, media is going to be beat it to death; and bloggers are slaughtering it already. Sorry Sarah even I mocked at you :-), try to listening to BBC World service, every day, for few years :-)