How do agribusiness firms feel about regulation of the food safety practices?

From the text:

Having centralized American agriculture, the large agribusiness firms are now attempting, like Soviet commissars, to stifle criticism of their policies. Over the past decade, "veggie libel laws" backed by agribusiness have been passed in thirteen states. The laws make it illegal to criticize agricultural commodities in a manner inconsistent with "reasonable" scientific evidence. The whole concept of "veggie libel" is probably unconstitutional; nevertheless, these laws remain on the books.