I suppose it would eliminate the chance for interception of sent mail, but the drafts folder has to be sitting on a server somewhere that .gov could likely access one way or another.
Which, in fact, the Alphabet Boys did.
This just gets dumber and dumber. Article on Military.com
http://www.military.com/daily-news/2012/11/13/petraeus-affair-could-end-broadwells-army-career.html?ESRC=army.nlBroadwell supposedly has a Top Secret security clearance. Now, I admit it has been awhile since I was in, and I only had Secret, not Top Secret, but I don't think the rules have changed that much: regardless of your level of clearance, it doesn't give you
carte blanche access to everything at that level of security. ALL classified information is (or so I believed) on a "need to know" basis. If you don't need it -- you don't read it, and I don't care a fig what your clearance is.
So check this out:
During an appearance in July at the Aspen Security Forum in Colorado, Broadwell said she had a Top Secret clearance and routinely had access to high-level briefings with Petraeus and other Army and intelligence officials while in Afghanistan.
"I was entrusted with this opportunity to sit in on high level meetings with General Petraeus,” she said. “Sitting in on SCIF [sensitive compartmented information facility] meetings in the morning, listen to classified chatter of terrorist talk and so forth.”
Mind you, she wasn't even there as a military officer -- she was there as a civilian, researching a book. I don't care how many stars Petraeus had, if he gave this broad access to classified briefings, he was acting WAY beyond any authority he had.