William Ackman, chief executive and portfolio manager of Pershing Square Management, speaks during the Harbor Investment Conference in New York

 
William Ackman, chief executive and portfolio manager of Pershing Square Management, speaks during the Harbor Investment Conference in New York
William Ackman, chief executive and portfolio manager of Pershing Square Management, speaks during the Harbor Investment Conference in New York February 13, 2013. REUTERS/Shannon Stapleton