In the epilogue one of his books (maybe "the drowned and the saved"?), Auschwitz survivor Primo Levi describes giving a talk to a group of schoolchildren. One boy asked him to describe the layout of the camp, and then described how he would have escaped if he had been in Auschwitz. Nothing Primo Levi could say would convince the boy that escape was impossible.

Now I'm not saying that it was impossible for this citizen journalist to hide her identity, but the comments strike me as having a similar tone. People are simply assuming that her capture and death was preventable, because it is psychologically difficult to face the alternative. Namely, that only by accepting personal risk, was this woman able to stand up to the cartels. Even if the technology to protect her identity existed, maybe a person in this woman's situation would be very unlikely to know about it.

Of constructive suggestions are great, although I'm not qualified to judge their technical merit.