Haunted Footage on Instagram: "At 9:03 AM on September 11, 2001, live cameras captured the moment United Airlines Flight 175 struck the South Tower of the World Trade Center. Millions watching thought the first crash was a tragic accident—until the second plane hit, confirming the unthinkable: America was under attack. The impact tore through the 78th to 84th floors, trapping hundreds instantly and sending fire and debris cascading through lower levels. Survivors described shaking walls, collaps