So say 13% of adults in a CNN/USA Today/Gallup poll. Come again? 13%? That's right - a mere 13% of adults surveyed said he is most responsible for the post-Katrina woes in New Orleans. 18% said federal agencies are to blame, 25% state and local officials, 38% said no one is to blame, and 6% had no... Sign in to see full entry.