DNA stories

In the paranoid future of the genetically discriminatory security state, your life will be defined by your DNA, and access will be controlled by machines that instantly read samples of your genetic code to verify your identiy. When will this all kick in? It won't be long now, thanks to NEC's new DNA analyzer that can brand you as an in-valid in under 25 minutes.
Having a genetic disease means that there's something wrong with your DNA. Somewhere, in those millions of base pairs, even the simplest mutation (or mis-coding) in a gene can cause all sorts of serious problems, and since the problem is at such a basic level, it's impossible to fix without rewriting the essence of what makes you you. And we can now do that.