The Journal of 9/11 Studies has published a new paper by Dr. Frank Legge, entitled "What Hit the Pentagon?", available here: http://journalof911studies.com/volume/2009/WhatHitPentagonDrLegge.pdf

Here are some excerpts:

"The most logical inference from the Pentagon attack evidence is that the perpetrators of 9/11 knew that there would be many members of the public who would become suspicious for one reason or another. The perpetrators realized that a powerful technique for weakening the arguments of the skeptics would be to have them arguing against one another."

"There are two essential points to note:

1. Nothing should have hit the Pentagon. This implies a stand down order existed, as appears to be confirmed by Mineta's testimony to the 9/11 Commission.

2. The authorities could easily show us what hit the Pentagon but they do not."