The nation on Tuesday will remember the Sept. 11, 2001, airplane attacks on the World Trade Center in New York and on the Pentagon — as well as the crash of the jetliner forced by heroic passengers into a Pennsylvania field. About 3,000 people died in the coordinated hijackings by Islamic terrorists, and the nation has traditionally marked the anniversary with speeches and commemorations at all three sites and elsewhere.LATimes This episode is producted by J D Holiday