Washington (CNN) -- President Obama will take direct responsibility for administration mistakes when he releases a new report on the December 25 terror incident, according to a senior administration official familiar with the president's remarks. But he is not planning to fire anyone for the foul-up, the official said. "He will say, 'Here are the warts; I'm responsible,' " said the senior administration official, who requested anonymity because aides were not authorized to discuss the remarks before they're delivered by the president. The official said the president believes that previous administrations would "play hide the ball" and not come clean...