For related articles and more information, please visit OCA’s Food Safety Research Center page, Mad Cow Disease page, and our Factory Farming & Food Safety page.

Following on the heels of pink slime, mad cow disease (AKA bovine spongiform encephalopathy-or BSE) is back this week after a California dairy cow destined for a rendering plant that makes pet food was found to have the disease. So far, it looks like the beef industry is playing down the finding, hoping to dodge a loss in sales at home and abroad. The U.S. Department of Agriculture was quick to tell Americans that our food supply is entirely safe.

But the re-emergence of mad cow and the conversation around pink slime has re-opened questions about our food system. It has exposed how food safety falls inevitably through the cracks in a country where over 9 billion animals are being slaughtered per year and budgets for the departments that oversee these processes are being slashed. The incredible media coverage of both issues reflects a growing consumer interest in more transparency in what we’re eating and how it’s being produced.

While this is only the fourth case of mad cow in the U.S. to date, experts argue that finding it this time was a stroke of luck. Of the 34 million cows we slaughter annually in the U.S., 40,000 are being tested by USDA for the disease, down from nearly 500,000 in 2005-about one tenth of one percent.