And there's nothing that says that they cannot deliver the report earlier.  Government agencies rarely do, but it's not like they had to start writing from scratch either.  I'm sure it was already outlined and just waiting for a few detailed examples to provide evidence, and we know there are plenty of those.  Also, there's nothing that says that we, the people, will be notified that the report has been delivered, and even if they hold the official copy until the last minute, there will probably be advance copies provided to all the appropriate recipients so they will be ready to go as soon as the official release date arrives.  The 10 days of darkness might be Dec 15-24.  We will know within 2 weeks.  Have a blessed Christmas, everyone.