There could be an interesting court decision in India directing that non-A2 milk carry health warnings. A case has been filed arguing for such an instruction to be made mandatory.
http://www.ahmedabadmirror.com/ahmed...w/47193809.cms
The debate about A1/A2 in India revolves around two separate issues. One is the health aspect, with Indian researchers playing a leading role in establishing the medical harm that A1 milk can cause in humans. The other is a kind of nationalistic argument in favour of a ban on cows that have resulted from inter-breeding between Indian native breeds (which are pure A2) and European breeds that carry the A1 gene. Inter-breeding, especially with Friesian-Holsteins, can increase milk yields, and has been so common that it is now hard to find pure Indian bovine stock. But there is a strong popular movement in favour of returning to the traditional Indian breeds, which can survive well on far less feed than the Europeanised cows, can consume food scraps and other roughage instead of requiring pasture and expensive cattle feed, and have a much higher immunity to disease and thus require much less veterinary medication such as antibiotics.