I'm a morning person because I learned to write my novels while still practicing law. I would get to the office at 6:30 a.m. and write until other people arrived around 9. Now I still do that. I start at 6:30 or 7 and I'll write until 11 then take an hour off then work until about 2 p.m. By then my brain has had enough.
The plan we developed to deal with al Qaeda depended on developing sources of human and technical intelligence that could give us insights into his plans at the tactical level. This is easy to say but hard to accomplish.