Two questions about the Pentagon remain unanswered for some people:
1. What happened to the building girders?
2. What happened the fuselage of the Boeing 757?
Please understand that the Pentagon was the first major building built with a tension-wire technology. It is still the largest building ever built with tension-wire. This design does not use steel I-beam girders to construct the structure. It is presumed by engineers that slamming a plane into such a building would look a lot like pushing cheese thru a wire cutter.
Furthermore, tests have been done, at high speeds, of slamming a fighter jet into a solid wall. These tests were done to prove what will happen when a jet slams into the side of a nuclear containment building at a power plant. Most of the plane turns to dust or tiny debris. Small pieces of the wingtips and the engines were found, but not much else.
Here is a picture of luggage and debris from the Boeing 757 collected a couple days later. This image seems consistant with expected results from such an impact; based on other observed events.
</IMG>