From the History Commons Groups blog:

Numerous new entries have been added to the Complete 9/11 Timeline at History Commons, many of which deal with the US military's actions around the time of--and in response to--the 9/11 attacks, while other new entries provide important information about the military's responses to suspicious aircraft prior to 9/11.

New timeline entries describe how NORAD--the military organization responsible for defending US airspace--regularly launched fighter jets in response to suspicious aircraft in the years before 9/11, with fighters able to take off within minutes of a scramble order.

On July 7th, 2011 Miles Kara, researcher and former staff member of the 9/11 Commission, wrote a response to my film "Inside 9/11 - Hijacking the air defense":

http://www.oredigger61.org/?page_id=2409

Here is my answer to him - as an open letter.

Dear Miles Kara,

a reader pointed me to your response on my film "Inside 9/11 - Hijacking the air defense". First I want to thank you for taking the time for a closer look on this. I put this as an open letter, going out to several other researchers as well. My principal aim is to promote an open discussion about this issue and your response is a very welcome step in this process.

Here is a short video by the German freelance journalist and author Paul Schreyer, based on his new book Inside 9/11, which "contains a short summary of the publicly available--but still widely unnoticed--evidence for a supposed attempt to obstruct the air defense on September 11th, 2001." The video focuses in particular on the actions of Colonel Robert Marr, the battle commander at NEADS on September 11, 2001.

Hopefully an English translation of Schreyer's book will be published at some point.

More information about Paul Schreyer and his new book is here:
http://inside-911.de/index.html