Two people were seen on surveillance tapes cutting through a fence and climbing atop the storage tank at a liquefied natural gas storage facility in Lynn last week, and while it does not appear to be an act of terrorism, authorities are calling for a full-scale investigation. Authorities were especially displeased with the five-day lag between the Aug. 16 security breach and when KeySpan Corp. reported it to the state on Monday, said Mike Coelho, chief of staff of the state Executive Office of Public Safety. “That’s less than ideal, that kind of reporting turnaround,” he said. “We’re not happy about it.” Full Story