I love Lost and recently I've been trying to log all the events and understand all the mysteries! I know the DHARMA initiative died in the purge when Ben gassed the island but when the incident with the bomb happens in the 70's I'm confused. In the Incident, Juliet sets off the bomb and most of the DHARMA leaves the island or stays. If the DHARMA later died in the purge, then what happened to the group in the 70s? Did they just go into hiding and then come back to the barracks? Or was that a whole new group that Ben killed when he was older in the purge?