That's not really a response to crisper, rather a response to why humans won't be engineered using crisper any time soon. Crisper itself is very powerful. And

That's not really a response to crisper, rather a response to why humans won't be engineered using crisper any time soon. Crisper itself is very powerful. And like any dual-use technology, that power can be put to ill purposes. Crisper however, is unique in that it is 1) easy and 2) only understood by a very small fraction of people. Nukes are 1) hard and 2) not well understood. Guns are 1) easy and well understood. Synthetic biology will become well understood, but not for a generation or so of people seeing how their tools have actual practical, ethical, aesthetic and damaging functions. Crisper is scary because it's very potent, and very easy to use.