Civilis TV on Instagram: "The impact of United Airlines Flight 175 marked a devastating escalation in the September 11 attacks. At 9:03 a.m., the aircraft struck the South Tower, a moment that was heard and felt across Lower Manhattan. In the North Tower’s lobby, the shockwave reverberated through elevator shafts and structural columns, sending debris and smoke downward and leaving survivors stunned by the force of the collision. Emergency responders and occupants struggled to comprehend the sca