Will Palin's "thanks but no thanks" about bridge to nowhere claim become her snipergate?

Sarah Palin's thunderous rise to the top of the nation's attention came with cheering by some, indifference by others, and outright disdain by the rest, her polarizing time at the top has been spent with endless scrutiny and damning accounts of her record from her opponents, and unlimited adulation from her supporters amongst a formerly lethargic and re-awakened base that brings to mind another similar account from just a few months ago.
When Hillary Clinton tried to beef up her foreign policy credentials by claiming she had been subjected to sniper fire when landing in Tuzla, Bosnia at the height of the Balkan crisis in the early 1990's, it was met with a huge media backlash when video surfaced showing her campaign plane landing safely and her and her entourage being greeted by smiling children.
Part of the reason there was such a backlash against Hillary Clinton is that there was an underlying conventional wisdom that festered within the back of the minds of the American populace that she was somehow deceitful, untruthful, or downright calculating, a factor which lead to her deep polarization amongst the American people and especially within the Democratic Party. So when the story broke it became an easy narrative for the media to push, and created further division amongst Democratic supporters of Hillary Clinton and Barack Obama, as well as further animosity from their Republican rivals.
The same rule now seems to be applying to Sarah Palin, who's rushed introduction lead to a lot of speculation amongst members of the media who felt that maybe perhaps there wasn't enough known about this politician and her rivals began combing every statement she ever made looking for contradiction, extremism, or anything that would lead to a sensational story.
Something like this was bound to happen sooner or later, the McCain campaign obviously didn't vet the candidate as well as they could've, or at least should've picked a better message for her to run on, but if Palin's blatant contradictions about being "for the bridge to nowhere before she was against it" gets more legs within the media, and becomes more of a driving narrative than a single story within a vast cycle, (becoming debate fodder) then the McCain campaign may need to play some serious defense and change their message dramatically.