I don't like to spread baseless rumors, but I just read that the shutdown was actually a planned maintenance takedown of the websites which others had forgotten about. Combined with the paranoia resulting from their recent approval as gun manufacturers by the ATF and the simple fact of being up at 12:08 am, way beyond everyone's bedtime.
Another cowardly unnamed source mentioned the launch of www.defcad.com which signifies a commercial business rather than a .org charitable enterprise, beholden to all of the 501c loopholes and strangleholds, including the loss of the ability to endorse a political view or candidate. The celebration of this newfound freedom is now believed to be the reason why everyone was still up at 12:08 am.
It was probably the pandas.