I had to look this up. Apparently the original lung prohibition was enacted in the early 70s. As late as 2011 there was a lobby to have the prohibition rescinded. The excuse given was that it wasn't fit for human consumption. This is amusing to me for two reasons:
1. Humans consume sheep lung daily with no worries.
2. Americans eat Rocky Mountain Oysters daily.
1. Humans consume sheep lung daily with no worries.
2. Americans eat Rocky Mountain Oysters daily.