Ann Althouse's Derring-Do

A reader writes:

How interesting that she wades through so many lies to settle on the most innocuous of the bunch.  And how fortunate that this lie (originally number 23 in your list) was so easily Googled that she could reference your admission of its tameness on the original source post rather than tackle one of the more illustrative and damaging examples.

Here's a very simple one for Ann to ponder: why has Palin herself admitted she lied when she told Sean Hannity that she asked the girls (but not Track) for their permission to accept the vice-presidential nomination - and that they unanimously agreed? How could she recall the specifics of the event when she now says it didn't happen at all?