That said, the first thing that came to my mind when they mentioned putting the CRISPR engine in new cells so they make more of the same and spread kind of like a virus... They mentioned they tried it and it worked first time. So, unless I'm missing something, it's only a short matter of time before some disgruntled person could try to destroy the world's food supply or cause many other large scale issues.
Maybe that's harder than it sounds but it just seemed like a crazy amount of power for any one person with access to the tech to have. And, unlike nukes there's really no way to prevent this power from getting stronger, easier, and more accessible. Nukes you need the fuel. This you mostly just need the knowledge.
Sorry I'm not suggesting any course of action. It's just I believe we won't make it past The Great Filter because as tech progresses it gets easier and easier for a single person to destroy the world. Embedding the CRISPR engine so it spreads seemed like a step in that direction.