It's not the Missouri Compromise of 1820, but Gov. Strickland probably faced some similar passions: the Farm Bureau protecting current methods of raising livestock, particularly cages for hens and farrowing crates for sows, while the Humane Society wants to end both. Farm Policy has a description here.
If I understand, they took a standard approach in these sorts of disputes: grandfather in the existing operations and apply new rules to new operations. (Same tactics have been used in lots of labor union-employer disputes; keep the old-timers whole and make the newbies suffer.) John Phipps has a slightly jaundiced, dare I say cynical evaluation.
Given the proliferation of outlets, the bottom line for farmers and processors is: if you and your customers wouldn't like seeing it on-line, don't do it, because it will be on-line. Just ask Dave Weigel about the ability to keep data private.