I don't know whether this is credible, and I'm certainly not going to out on a limb and declare that this is what Obama's been trying to hide, so now it's definitely impeachin' time. (I realized just a few hours ago that my reaction was very much affected by my dislike for those crowing about being right all along, when of course they weren't.)
If this is true, it's surprising how zippered up the Obama administration is. Or perhaps the CIA is much better at keeping secrets than most government organizations. Maybe the ambassador died protecting a secret stash of weapons from the al-Queda aligned group. May he died unsuccessfully protecting the weapons, and that group got its hands on bunches of missiles. Maybe it's some totally different incredibly sensitive story.
It would be great to know what it was, but the Obama administration is obviously not trusting Congress with the info. Currently none of us peons can judge whether the mission in Benghazi was worth the risk, totally immoral, or something in between. In the future, however, this information should be shared, with small leaks generally being the preferred method. There are probably more leaks to come. I hope we get the story soon and I hope it's not too bad. Reagan managed to withstand the Iran-contra scandal, but I'm not sure Obama could do the same.
All about the weapons?
Extra. Self-declared definitive timeline. It's about the weapons according to this 9/20/12 article.
Update 8/5/13. In posts like this, I usually write "What you want to hide, it ain't gonna stay hidden." This time might be different. If there was a big hush-hush operation in Benghazi, it's stayed hidden for nearly eleven months. Maybe it will stay hidden, or maybe it will slowly be revealed. With four Americans dead, it's had enough impact that it should be revealed. As I said before, I hope the story isn't too bad.