More than 700 architects and engineers have joined call for new investigation, faulting official collapse reports

The facts are in. The evidence is conclusive. These experts lay it all out.

For Some, the Doubts Began Early

"Something is wrong with this picture," thought Nathan Lomba, as he watched replays of the Twin Tower collapses on television on September 11, 2001. A licensed structural engineer trained in buildings' responses to stress, Lomba saw more on the screen than you or I. He puzzled, "How did the structures collapse in near-symmetrical fashion when the damage was clearly not symmetrical?"

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