I’m curious if anyone remembered when Ben was recruiting the Oceanic 6 to come back to the island, and he was in the hotel room with Jack–Ben took a “package” out of an air conditioning vent. It was all very mysterious and we never found out what it was. Could that have been the C-4? Did Ben bring it with him on the Ajira flight and then return with Richard to rig up the explosives? Just a thought!