There are various advantages cited for this type of reactor, including the claim that it can be stopped easily if things get out of hand, and that it produces less long-lived nuclear waste than the uranium-fuelled fission reactors that are currently in common use.
The union argues that its workers, having been exposed to uranium, hazardous waste and asbestos for more than 20 years, should expect Honeywell to pay for their health-care plans.