BS!!!!!!!!
There is a hugh difference between building a nuclear power plant, and the effects it can have, and a private farmer raising a cow, and possible effects that could have.
In fact comparing building a nuke to raising a cow really makes no sense in the article.
I worked in Environmental Qualifications at the Trojan Nuclear Plant, Goble, Oregon, 1986 - 1993. Yes, all welding rods have to have quality related documents that follow them from manufacuring to when used in the field.
So sorry, but you are mistaken.
Actually, it kinda does. Both a diseased cow and a radiation release present potential public health and safety issues.
(Note: the tracking of all welding rods, both during construction and maintenance and modifications after the plant is online, is more for Foreign Material Exclusion concerns. Individual welding rods aren't numbered.)