Do you really believe that if Monsanto would go after a farmer because some of his crops got cross pollinated with GMO crops that they wouldnt falsify study reports? The FDA did not require studies on GMO's because Monsanto said that their seeds were inherently the same without proof.
There is a hugh difference in breeding to get a certain breed and genetically modifying. An animal is cross bred with different breeds to attain a certain characteristic, not an animals DNA spliced with a foreign dna unrelated to the original species.