Our food is already processed within an inch of it's life (then a good three yards past it). Tour Spam will be grown in a vat, rather than fed hormones and ground in a factory. Big deal.
You think PETA is unethical? Just wait for the smear campaigns that will crop up when MegaCorp can actually make some money off scaring people out of living meat.
This mystifies me. All you have to say is "genetically modified" and Europe flips its proverbial wig. Aren't savvy English cattle farmers going to say "Oh-my-Gaia this is Frankenfood! It is unnatural! It is cloned! It probably has DNA in it! Phone your representative, this should be banned!"
(The reference to savvy farmers is an oblique reference to the fact that the difference between GMO soybeans/corn/etc and non-GMO soybeans/corn/etc is that a preference or requirement for non-GMO product shuts American-grown stuff out of the market. What a handy coincidence.)
I'm european, and I seriously doubt that. I'd say that the US would pick it up before Europe. In Europe, we are much more wary about "unnatural" way of growing things, you just have to see with GMO ...
I suspect almost all of set B would eat vat meat and that set B is larger than set A.