Here's the fatwa I would need to see before I start believing they're really against Oscuma bint Larden:
On that basis, and in compliance with God's order, we issue the following fatwa to all Muslims: The ruling to kill Osama bin Ladin and his allies -- civilians and military -- is an individual duty for every Muslim who can do it in any country in which it is possible to do it, in order to liberate Islam from the grip of a murderous terrorist and his satanic followers, and in order for them to be defeated and unable to threaten any person anywhere.
When I see this hypothetical fatwa activated, I'll start to reconsider certain opinions. Until then, they remain.