I think the first one was retaliatory in nature.

The second, I think, is based on a mitgating damage approach. (See, everyone knew she worked for the CIA, it's not our fault that we blew her cover.)

Note that they're getting a lot of other people in this second one.

Your theory is plausable as well. One advantage your theory has (over my primary theory above) is that it explains the broad based approach as well.

(It is possible that this is merely a coincidence. That someone simply started looking around the net and starting finding other people that could be agents.)