Make sense to save gwb for the week comey is back in the spotlight. I think McCain was executed and gwb was old age. Since one was still active in politics they couldn't delay announcement and planned when they knew his execution date. Gwb wasn't planned so it took some time to figure out how to use.  Also I wonder if this stuff is used to track who talks to whom. If someone dies 11/15 and you spy on everything you can see who has Intel and who they choose to spread to