Well having grown up in beef country, being in and around the industry my entire life.
The fact is,
Every beef packaged in commercial plants must be able to be tracked to its origins.
The origins of the major outbreaks of mad cow were known and dealt with. More than one bogus documentary has been made on the beef industry. (PETA has funded more than one)
I'm not a big supporter of huge conglomerate owned agriculture, but false information does not help anyone.
Your original post made it sound like ALL beef is processed in one plant..I realize that's not what you posted, but it reads that way.
If your concerned with mad cow and e.coli you don't have to quit eating beef. Naturally raised and locally processed and tested beef is available almost everywhere.
No reason not to have a great steak!!