OK, I've had my fun.

I have to admit I enjoyed being all cloak and daggerish in the preceding posts. But having had my fun with my pun,  I   now owe an explanation to those who are new to the whole Brown saga:

Juan is the name Paul used in DEFYING GRAVITY, for the character who went through Camp Peary. Perry oh heck, The Farm, with JD/Morgan. As I have heard their story, one of them subsequently followed a straight CIA career path, while the other passed through military service and the NSA.  But  in aviation parlance,  they continue to cover  each others "six." It's another one of those loyalty things. Some folks just have it embedded in their genes.