Animals are bred and slaughtered for food on a regular basis. That is the objective of "animal husbandry". There has been human DNA included in pork, to facilitate quicker lean muscle gain for better meat, While I think this may be apocryphal, it also means a lot of experimentation has been going on for decades, in order to achieve faster, better, and most importantly, cheaper, results. If gene splicing can make animals better, somehow, for production and consumption, why is it so important to keep such things secret? To protect a trademarked animal? To protect a corporation? To prevent some farmer, somewhere, from threatening corporate growth somewhere else? If it's so safe, why not just label the product(s)? We all have the right to know what we're eating. Soylent Green was likely the result of a similar breeding, processing, and marketing process. Even as fiction, look at the way that whole thing turned out. Did they take everyone, or limit the choices to benefit the process, or the end result?