I read the article that was kindly submitted here to open the thread. I read all the comments that were posted here before this comment. I read the underlying Nature News article that the submission was based on. Reading that, I discovered that the underlying research paper, "CRISPR/Cas9-mediated gene editing in human tripronuclear zygotes,"[1] is open-access, so we can all read it for ourselves to see how what is reported by the study authors compares to what is reported by the thread-opening news story.

[1] http://link.springer.com/article/10.1007%2Fs13238-015-0153-5