Okay, maybe the sky isn't falling, but I stumbled across this article on the problems with US beef and why we are at risk of an outbreak of mad cow disease. In fact, the blog links to story of someone in Japan who caught it (here). It's only a matter of time until the US has a legitimate outbreak with current beef feeding practices, or the government will continue to hide the beef industry's dirty, repulsive secret of feeding blood and sinew of dead cattle to other cattle.
Now go fire up that grill and plop on some burgers. . . or some portabellas.