NOW: President Trump recounts the final acts of courage aboard Flight 93, 25 years after the September 11 attacks. He remembers Todd Beamer, the New Jersey father who joined a phone operator in the Lord's Prayer before delivering the words that became a rallying cry after 9/11: "Let's roll." The passengers and crew fought back against the hijackers before the plane crashed near Shanksville, Pennsylvania, preventing it from reaching its intended target. ▻