For over a year scientists have been refuting the Chicago Tribune’s assertions that emissions of ethylene oxide (EtO), from a medical equipment plant, Sterigenics in Willowbrook, presented a danger to the public. Last October, Sterigenics, overwhelmed by public pressure, closed the Willowbrook operation for good. . . . Much of the medical equipment needed in the fight against the coronavirus can only be sterilized with EtO, and that equipment is in dangerously short supply.