On Friday (of course), the FDA approved the first genetically modified goats. These have been bioengineered with a human gene that makes the anti-clotting protein, antithrombin. The goats excrete this protein into their milk (I hope their babies aren’t drinking this milk). Antithrombin ordinarily has to be extracted from human plasma, an unreliable source. This way, if more antithrombin is needed, the company that invented this scheme (GTC Biotherapeutics) just milks more goats. The FDA had previously approved doing things like this in theory, but this is the first practical application. Some antithrombin with your goat cheese, anyone?