Palin laughs in face of sexist attacks on rival

These are the kind of stories that make you wonder about the depth of vetting for Sarah Palin. Earlier this year on an Alaskan talk show, the governor and would-be vice president, giggled/laughed nervously as one of her political rivals was hit with a withering sexist attack based on her weight. The "B" word even was invoked -- not by Palin, but laughed when it was used.

And guess what, the audio of this lives.