The third herd

Yep. Maaaaaaaaaaaaaaaaaaaaaaad Cow.

The herd put under quarantine in the last day or two is at a dairy farm in Mattawa, near Yakima, where investigators traced one of 80 cows that entered the United States with the diseased Holstein in late 2001.

Another nine cows and a calf born last month to the sick cow are on the Mabton, Wash., dairy farm that was the Holstein's final home. Another calf is on a farm at Sunnyside, Wash., also near Yakima, that raises bull calves.

Investigators are trying to find cows from the same herd because the most likely source of infection was contaminated feed that the Holstein ate as a calf, DeHaven said.  article

All right. Let's talk about this a minute. That contaminated feed wasn't fed to just one Holstein, folks. You do not give one bag of feed to each calf. And, you do not process one bag per batch of feed.

Yes, that's what I'm saying. There are many diseased animals out there. Ninety-to-nothing there are a number of human deaths caused from eating diseased beef that have been attributed to some other cause.

It's time to stop feeding cows what we know cows should not be eating. But that would cut into beef industry profits.

American officials have stressed that the diseased cow's age and the date of the feed ban suggest the infection occurred in Canada. This idea, if proven, would underline the effectiveness of the ban and, what is more important, would allow U.S. authorities to place the root of the problem north of the border, in Canada.

Absolutely. The most important thing is to blame Canada. Because we don't have any problem with our system here.

Including the stricken Holstein, 81 animals were believed shipped across the border from the same Alberta farm in 2001.

That still doesn't account for the other bags of feed from that contaminated batch and the other cows that were fed those bags. Were any of them shipped across the border?

....but hey, do what you want....you will anyway.