Designer babies is the start. Like I already believe if you're "selecting" something like your baby's gender, you're fuckin Hitler. But then, my roommate was all, "Well what if you could remove the trait for Huntington's that runs in the family?"
So there's clearly a spectrum of ways that genetic engineering could go.
The most interesting case to me is of He Jianku, who reportedly began studying and modifying human embryos. CIA fear disinfo, or Chinese scientists just marching ahead and setting the new standards of the 21st century?
I spent some time in a pretty big deaf/Hard of Hearing community. There definitely is a stigma with Cochlears, but I think its getting less and less. The important thing about cochlear implants is the earlier you get them, the more your brain adapts. The implants often still go hand in hand with sign language training. Every person I met with a cochlear implant also signed and used an interpreter for class, but most you could talk to normally, just making sure they could read your lips.