Mass Exhumations in Mexico

So is it a good idea to exhume as many as 4,000 bodies for DNA testing and identification purposes?

I'm torn. On the one hand, if it leads to an investigation of police tactics, as the article suggests, solves some old murders, improves future law enforcement training, and is helpful to anti-corruption campaigns within Mexico's political and law enforcement bureaucracies, then I can see the benefits. Also, it's not a bad thing to resolve mysterious deaths, and hopefully give families opportunities for closure.

At the same time, I read this article and immediately think of the massive opportunity to bungle the results (my wife calls this line of thinking the "Plavnick family optimism"). Mislabeled remains, mistaken identities, and misinformed families all strike me as possible problems in an endeavor such as this. That doesn't mean I'm against it, I'm just not sure I'm for it. In the end, I want some confirmation that the process will serve to help bring justice to the poorest of the poor in Mexico (which strikes me as the project's unstated goal, as represented in the article), whom I suspect are often the victims in these unsolved crimes, especially crimes against women as the article details.

I'm curious about the costs of exhuming, identifying and reburying so many victims. To my mind these could go a long way toward combating the causes of poverty, which also inherently helps bring a measure of justice to poor communities.