Could this have something to do with the Air China flight to Korea?
I started digging on CERN and THEP and found some leads:
CERN began in 1954, the same year DOE created Q level clearance. A university in Korea seems to be a major research hub - CAU. And there is a “Light Dark World Iinternational Forum” being held there 12/17/2018 through 12/21/2018