I've actually heard that some lamb is irradiated. I bought some lamb from whole foods, and I'm a little concerned because it seems to have gone bad faster than my beef.
The beef still seems brand new, while the lamb is already a little smelly and has a stronger taste. Which doesn't make sense since irradiated meats last longer. I guess I have nothing to worry about.
But it's good we're eating high quality meats. The food quality in the U.S. is getting worse and worse.