PLNB Priority Transmission XX087R-XX, was a message from Codename: COALMINER to Codename: SURGEON. It contained a Progress report on Operation: HYPODERMIC. Cortana's inquiries into HYPODERMIC had been detected and was reported in this message. Because of this, Circumference was removed from the station's records, keeping the Cole Protocol from being enacted on Circumference during the Battle of Reach.