Since I do not have the expertise that these people whom I am going to direct you to have, I think it best to do this in that manner.
Here are some of the sources:
Laura Mansfield web site: Bin Laden stresses martyrdom in short segment of new As Sahab video.
Video Web Link from Laura Mansfield web site.
CNN: Newly released bin Laden video calls for martyrdom.
ABC News: Possible New Message From Osama Bin Laden.
FOX News: Osama Bin Laden Appears in New Video, Officials Probe Authenticity.
I would personally go to Laura Mansfield’s and Counter Terrorism Blog for any serious discussion of what is happening in the world today. They are very prolific in history as well.