Terrifying History on Instagram: "The West Street footage of United Airlines Flight 175 striking the South Tower on September 11, 2001, filmed by French documentarians Jules and Gédéon Naudet during a FDNY documentary shoot, captures the Boeing 767 banking sharply before impact at 586 mph, followed by a massive fireball erupting from the tower’s north facade. The video shows the explosion’s shockwave shattering windows along West Street as debris rains down on fleeing pedestrians and first respo