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First, I wasn't aware that Lt. Gov. of Alaska was a national office.
Second, these beliefs (save creationism) on what is right and wrong are not really any different than the Catholic church, which Biden claims to believe in himself. Certainly his recent statement on when life begins was basically the same. The difference is he's avowed not to enforce his beliefs on the rest of the country.
And praying (i.e., hoping) that the troops are on a moral mission is very different than what you seem to making of it: saying they are and turning it into some holy war.
For all I know, Palin may believe that the way GW seems to, but that's not what she said in that church.
So fine, hope she gets asked these questions, but don't make the mistake that everything a pol believes personally is also policy.