NY1 VIDEO: In March 2004, the federally appointed 9/11 Commission began public hearings into what led to the September 11th terrorist attacks, and officials from the Clinton and Bush administrations testified about the nation's counter-terrorism strategies. On the second day of hearings, former State Department official Richard Clarke started his testimony by apologizing to the families of 9/11 victims. NY1's Davidson Goldin filed this report on March 24, 2004.