Obama knows that once technology experts like Polarik have a copy of Obama's verified Hawaii birth certificate sitting in front of them on their desk, they will go over Obama's birth certificate inch by inch and finally prove beyond a shadow of a doubt that Obama is or is not eligible to be President of the United States.
Again, Obama may fear Limbaugh, but he also fears Polarik and other technology experts who can't wait to get their hands on a real short or long form Obama birth certificate directly from the State of Hawaii in order to prove that Obama is eligible or not eligible to be President of the United States,