AT 9:03:11 A.M., less than seventeen minutes after American Flight 11 devastated the North Tower, United Flight 175 bored deep into the South Tower. The plane struck the tower’s south face, twenty-three feet from the midpoint, toward the southeast corner. The off-center jolt caused the upper floors to rotate like a boxer’s torso twisted from an unexpected blow. The entire building vibrated from rooftop to ground. The plane struck on a 38-degree angle, its right wing sharply higher than its left. The nose, pointed slightly downward, hit the slab of the 81st floor, near where Stan Praimnath
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