NASHVILLE, Tenn. -- Fisk University's new president, Clinton administration Energy Secretary Hazel O'Leary, was escorted off a flight and questioned by the FBI after she became abusive and tried to get into the cockpit while the plane was delayed on the tarmac, authorities said. O'Leary said she simply wanted to get off the plane. "I regret the unfortunate misunderstanding that occurred," she said in a statement. "The situation was resolved. At no time was I rude or disrespectful to anyone." The United Airlines crew told police that O'Leary was "getting loud and abusive" after the flight was diverted to Richmond,...