Some of the latest comments on the Shocking News post are discussing a lockout at RC-1 Wednesday. Initially it was reported that foreign nationals were being turned away at the gate by guards. Later it was clarified that all non-Q cleared people were excluded due to a "classified exercise". Another commenter implies that the facility was searched, though there is no mention of law enforcement being involved.
So what's going on at RC-1? Could it be that something classified is missing and they didn't want uncleared people searching for it. Or perhaps RC-1 is one of the sites accidentally disclosed in the recent US declaration to the IAEA and security was doing a vulnerability assessment. What's your theory?