Original sentence: The Harkonnens drink the juices of crushed insects; they also have heart-plugs, sadistic devices that terminate slaves by "unplugging" their hearts
Edited sentence: The Harkonnens drink the juices of crushed insects.They also have heart-plugs, sadistic devices that terminate slaves by "unplugging" their hearts (possibly this was introduced to portray the Baron's sadism while avoiding explicit references to homosexuality)