In 2014, Pollan co-hosted a discussion and informal debate on the topic of genetic modification at UC Berkeley featuring prominent plant geneticist Pamela Ronald , professor at UC Davis , whose research-based position "strongly disagrees with Pollan’s view that . crops, broadly, are failing."  A New Yorker reporter observed that Pollan's largely anti-GMO student base at the discussion itself constituted, "a kind of monoculture," yet that Pollan sought "to introduce an invasive species" by engaging Ronald. The event, while predictably contentious, reportedly produced a rare instance of courteous, productive exchange between the two main sharply-opposed viewpoints on genetically-modified crops. 
Most advocates of Divine Command Theory do not want to be stuck with the implication that cruelty could possibly be morally right, nor do they want to accept the implication that the foundations of morality are arbitrary. So, a divine command theorist might avoid this problem of arbitrariness by opting for a different answer to Socrates’ question, and say that for any particular action that God commands, He commands it because it is morally right. By taking this route, the divine command theorist avoids having to accept that inflicting suffering on others for fun could be a morally right action. More generally, she avoids the arbitrariness that plagues any Divine Command Theory which includes the claim that an action is right solely because God commands it. However, two new problems now arise. If God commands a particular action because it is morally right, then ethics no longer depends on God in the way that Divine Command Theorists maintain. God is no longer the author of ethics, but rather a mere recognizer of right and wrong. As such, God no longer serves as the foundation of ethics. Moreover, it now seems that God has become subject to an external moral law, and is no longer sovereign. John Arthur (2005) puts the point this way: “If God approves kindness because it is a virtue and hates the Nazis because they were evil, then it seems that God discovers morality rather than inventing it” (20, emphasis added). God is no longer sovereign over the entire universe, but rather is subject to a moral law external to himself. The notion that God is subject to an external moral law is also a problem for theists who hold that in the great chain of being, God is at the top. Here, there is a moral law external to and higher than God, and this is a consequence that many divine command theorists would want to reject. Hence, the advocate of a Divine Command Theory of ethics faces a dilemma: morality either rests on arbitrary foundations, or God is not the source of ethics and is subject to an external moral law, both of which allegedly compromise his supreme moral and metaphysical status.