CBS Evening News | Army bugler Keith Clark was the lone bugler sounding taps at Arlington National Cemetery after President John F. Kennedy was assassinated. He missed the 6th note, which struck many as listening to the sound of a broken heart

Army bugler Keith Clark was the lone bugler sounding taps at Arlington National Cemetery after President John F. Kennedy was assassinated. He missed the 6th note, which struck many as listening to the sound of a broken heart. Air Date: Nov 16, 2013