Taking 'There are also a couple of small aircraft lying offshore (relics of drug runners who ran out of luck) that make fascinating artificial dive sites.' as a given, does it logically imply 'Most of the crashed airplanes were hauling drugs from Cuba.'
There are also a couple of small aircraft lying offshore (relics of drug runners who ran out of luck) that make fascinating artificial dive sites.###Most of the crashed airplanes were hauling drugs from Cuba.