Genome editing in human embryos using current technologies could have unpredictable effects on future generations. This makes it dangerous and ethically unacceptable. Such research will be exploited for non-therapeutic modifications.
Today with commonly available technology , we can deliberately turn human cells into metastatic human cancer cells - and science has published the method of how to do that.
Well, let's see, here's something that comes to mind. If there is some politician I want to get rid of, all I need are some of his skin cells - you know about the amount you would need to do one of those DNA analysis kits, like 23andme. Take the cells of that politician and turn them into what looks like a cancer that "just happened" to develop in that person.
The final step is to scratch the victim with a needle/syringe loaded with the metastatic cancer cells derived from his own body. It's like the perfect crime. "He died of cancer; how unfortunate."
excerpt taken from