I looked very strongly at traveling to Mexico for some medical work. However, I talked to an Mexican American neighbor that speaks the language fluently and they grew up in a border town and they commented they wouldn't step foot in Mexico at this time. Hearing their thoughts and reading the news online about the corruption of the police force and finding news sources that are reporting what the major networks won't I cancelled my plans.
So be diligent before you travel to Mexico or anywhere overseas for that matter.
Randal